BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//IQSE - ECPv6.15.20//NONSGML v1.0//EN
CALSCALE:GREGORIAN
METHOD:PUBLISH
X-ORIGINAL-URL:https://iqse.tamu.edu
X-WR-CALDESC:Events for IQSE
REFRESH-INTERVAL;VALUE=DURATION:PT1H
X-Robots-Tag:noindex
X-PUBLISHED-TTL:PT1H
BEGIN:VTIMEZONE
TZID:America/Chicago
BEGIN:DAYLIGHT
TZOFFSETFROM:-0600
TZOFFSETTO:-0500
TZNAME:CDT
DTSTART:20210314T080000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:-0500
TZOFFSETTO:-0600
TZNAME:CST
DTSTART:20211107T070000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETFROM:-0600
TZOFFSETTO:-0500
TZNAME:CDT
DTSTART:20220313T080000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:-0500
TZOFFSETTO:-0600
TZNAME:CST
DTSTART:20221106T070000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETFROM:-0600
TZOFFSETTO:-0500
TZNAME:CDT
DTSTART:20230312T080000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:-0500
TZOFFSETTO:-0600
TZNAME:CST
DTSTART:20231105T070000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETFROM:-0600
TZOFFSETTO:-0500
TZNAME:CDT
DTSTART:20240310T080000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:-0500
TZOFFSETTO:-0600
TZNAME:CST
DTSTART:20241103T070000
END:STANDARD
END:VTIMEZONE
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20230912T113000
DTEND;TZID=America/Chicago:20230912T123000
DTSTAMP:20260430T020925
CREATED:20230908T155739Z
LAST-MODIFIED:20230908T155741Z
UID:822-1694518200-1694521800@iqse.tamu.edu
SUMMARY:Gravitational Quantum Eraser
DESCRIPTION:IQSE AMO QO Seminar Series \n\n\n\nPizza will be served for IQSE members at 11:00 am. The talk will start around 11:30 am. \n\n\n\nSpeaker: Dr. Yusef Maleki \n\n\n\nVenue: IQSE SEMINAR ROOM (MPHY 578) \n\n\n\nABOUT THE SPEAKER: Yusef Maleki received his Master of Science degree in theoretical physics from the University of Mohaghegh Ardabili in Iran and his PhD degree in physics from Texas A&M University. Yusef is now Postdoctoral Research Associate at Texas A&M University. \n\n\n\nEVENT DETAILS: The quest for a quantum mechanical description of gravity stands as a central pursuit in modern physics\, holding the promise of unlocking answers to profound unresolved mysteries in the field. Any ultimate theory seeking to reconcile gravity with quantum physics must embrace fundamental quantum features like the uncertainty principle\, quantum superposition\, wave-particle duality\, etc. Considering the concept of wave-particle duality\, the quantum eraser reveals a fundamental difference between quantum mechanics and classical theory.  In this talk\, I will introduce the notion of a “gravitational quantum eraser\,” illuminating how the intrinsic quantum characteristics of gravity permit the emergence of a quantum eraser phenomenon within the framework of quantum gravity. I show that the gravitational quantum eraser offers a straightforward and experimentally possible platform for scrutinizing the quantum essence of gravity. In essence\, by utilizing tools from quantum information theory\, I show that the realization of the gravitational quantum eraser suffices to infer the quantum nature of the gravitational field. \n\n\n\nZOOM information: \n\n\n\nhttps://tamu.zoom.us/j/98156251523?pwd=QVdSdGxtL1UyY0g1L083SU5QR0QrUT09Meeting ID: 981 5625 1523Passcode: 297578 \n\n\n\nOne tap mobile+13462487799\,\,98156251523# US (Houston)+16694449171\,\,98156251523# US
URL:https://iqse.tamu.edu/event/gravitational-quantum-eraser/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20230905T123000
DTEND;TZID=America/Chicago:20230905T134500
DTSTAMP:20260430T020925
CREATED:20230906T133035Z
LAST-MODIFIED:20230908T155559Z
UID:643-1693917000-1693921500@iqse.tamu.edu
SUMMARY:Low temperature deposition of oxide films driven by VUV/deep-UV radiation or arrays of microplasmas\, and photolithography at 172 nm
DESCRIPTION:IQSE Seminar \n\n\n\nPizza will be served for IQSE members at 12:00 pm. The talk will start around 12:30 pm \n\n\n\nSpeaker: J. Gary Eden (University of Illinois) \n\n\n\nVenue: IQSE SEMINAR ROOM (MPHY 578) \n\n\n\nABOUT THE SPEAKER: J. Gary Eden has served as a member of the faculty of the University of Illinois (Urbana) for 43 years. After receiving the Ph.D. degree in Electrical Engineering in 1976\, he conducted research in the Optical Sciences Division of the U.S. Naval Research Laboratory (Washington\, DC) from 1976 to 1979. While at NRL\, he co-discovered several lasers\, including the KrCl (222 nm) laser and the first proton beam-pumped lasers (Ar-N2\, XeF). Since joining the faculty of the University of Illinois in 1979\, he and his students have pursued the discovery of lasers and high-power lamps and their applications\, atomic\, molecular and ultrafast laser spectroscopy\, optical physics in atoms and small molecules\, and the science\, technology\, and commercialization of microcavity plasma devices. He is currently the Intel Alumni Endowed Chair Emeritus in the Department of Electrical and Computer Engineering (ECE) at UIUC\, and is a co-Founder of Eden Park Illumination\, EP Purification\, Cygnus Photonics\, EPL Power Electronics\, and the Eden Park Foundation. Sixty-three individuals have received the Ph.D. degree under his direction\, and his current research focuses on laser fusion energy (LFE)\, ultrafast optical physics such as the control of atomic coherences\, a new generation of optical amplifiers\, VUV photochemistry in the solid state\, plasma photonic crystals\, and the disinfection of drinking water in the developing world. He was elected to the National Academy of Engineering in 2014. \n\n\n\nEVENT DETAILS: Thin film deposition processes such as atomic layer deposition (ALD) and chemical vapor deposition (CVD) are generally regulated by the temperature of a substrate. That is\, the decomposition of the molecular reactants (precursors) proceeds at thermal equilibrium\, and the gas phase and surface chemistry rates are governed by the Arrhenius equation. In an effort to lessen the dependence of electronic and photonic device film growth on temperature\, processes developed at the University of Illinois are designed to drive the gas phase/substrate interface chemistry far from equilibrium. Silicon dioxide (SiO2) films deposited at room temperature with a rate of ~50 nm/minute by the photodissociation of tetraethyl-orthosilicate (TEOS) at 172 nm in the vacuum-ultraviolet (VUV) spectral region have electrical and optical characteristics comparable\, or superior to\, those of films deposited at considerably higher substrate temperatures. The dielectric breakdown strength for 40 nm-thick SiO2 films\, for example\, is 5 MV-cm-1 which rises to 7.5 MV-cm-1 if the films are post-annealed at 200 °C. The latter value is within 12% of the measured value for 40 nm films deposited at 1000 °C by thermal oxidation (i.e.\, the “gold standard”). Similar results for Ga2O3 (deposited by microplasma-assisted ALD)\, and the performance of 172 nm photolithography\, will also be described.
URL:https://iqse.tamu.edu/event/low-temperature-deposition-of-oxide-films-driven-by-vuv-deep-uv-radiation-or-arrays-of-microplasmas-and-photolithography-at-172-nm/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20230905T110000
DTEND;TZID=America/Chicago:20230905T120000
DTSTAMP:20260430T020925
CREATED:20230906T132706Z
LAST-MODIFIED:20230908T155530Z
UID:640-1693911600-1693915200@iqse.tamu.edu
SUMMARY:Krypton Fluoride (248 nm) as the Laser Driver for Inertial Fusion Energy (IFE)
DESCRIPTION:IQSE Seminar \n\n\n\nSpeaker: J. Gary Eden (University of Illinois) \n\n\n\nVenue: IQSE SEMINAR ROOM (MPHY 578) \n\n\n\nABOUT THE SPEAKER: J. Gary Eden has served as a member of the faculty of the University of Illinois (Urbana) for 43 years. After receiving the Ph.D. degree in Electrical Engineering in 1976\, he conducted research in the Optical Sciences Division of the U.S. Naval Research Laboratory (Washington\, DC) from 1976 to 1979. While at NRL\, he co-discovered several lasers\, including the KrCl (222 nm) laser and the first proton beam-pumped lasers (Ar-N2\, XeF). Since joining the faculty of the University of Illinois in 1979\, he and his students have pursued the discovery of lasers and high-power lamps and their applications\, atomic\, molecular and ultrafast laser spectroscopy\, optical physics in atoms and small molecules\, and the science\, technology\, and commercialization of microcavity plasma devices. He is currently the Intel Alumni Endowed Chair Emeritus in the Department of Electrical and Computer Engineering (ECE) at UIUC\, and is a co-Founder of Eden Park Illumination\, EP Purification\, Cygnus Photonics\, EPL Power Electronics\, and the Eden Park Foundation. Sixty-three individuals have received the Ph.D. degree under his direction\, and his current research focuses on laser fusion energy (LFE)\, ultrafast optical physics such as the control of atomic coherences\, a new generation of optical amplifiers\, VUV photochemistry in the solid state\, plasma photonic crystals\, and the disinfection of drinking water in the developing world. He was elected to the National Academy of Engineering in 2014. \n\n\n\nEVENT DETAILS: The recent report of scientific breakeven at the National Ignition Facility (NIF\, Livermore\, CA) demonstrates the viability of Laser Fusion Energy (LFE) for commercial power production. This long-awaited breakthrough has prompted a re-evaluation of the optimal laser driver for LFE and associated target design. This presentation will review the unique characteristics of the krypton-fluoride excimer laser (KrF\, 248 nm) and its advantages as the driver for commercial power generation.
URL:https://iqse.tamu.edu/event/krypton-fluoride-248-nm-as-the-laser-driver-for-inertial-fusion-energy-ife/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20230822T113000
DTEND;TZID=America/Chicago:20230822T123000
DTSTAMP:20260430T020925
CREATED:20230907T210246Z
LAST-MODIFIED:20230907T210247Z
UID:793-1692703800-1692707400@iqse.tamu.edu
SUMMARY:Controlling the optical properties of matter by using Metasurfaces
DESCRIPTION:IQSE AMO QO Seminar Series \n\n\n\nPizza will be served for IQSE members at 11:00 am. The talk will start around 11:30 am. \n\n\n\nSpeaker: Dr. Euclydes Marega Junior \n\n\n\nVenue: IQSE SEMINAR ROOM (MPHY 578) \n\n\n\nABOUT THE SPEAKER: Euclydes Marega Jr is currently an Associate Professor at the University of Sao Paulo -Brazil. He received his Ph.D. in Atomic Physics in 1993. He is the head of Nanofabrication Laboratories at the Physics Institute in Sao Carlos. He co-authors over 150 scientific papers on semiconductor growth\, optical properties of semiconductor quantum dots\, and light-matter interaction at the nanoscale. In addition\, he has contributed to disseminating scientific knowledge in the Brazilian Physical Society for 15 years as a member of the coordination of the Brazilian Physics Olympiad. This event involves over 200 thousand elementary and high school students annually. \n\n\n\nEVENT DETAILS: Metasurfaces have emerged as a remarkable platform for finely controlling light-matter interactions at the quantum level. Composed of subwavelength nanostructures\, these engineered surfaces empower precise manipulation of quantum emitters’ behavior by effectively modulating incident light’s phase\, polarization\, and intensity. This unparalleled degree of control allows for tailoring resonant modes\, dispersion properties\, and radiation patterns\, culminating in heightened emission rates\, directionality\, and coherence of quantum emitters. By exploiting plasmonic and photonic resonances within metasurfaces\, researchers unlock a range of effects\, including Purcell enhancement\, efficient photon extraction\, and even the alteration of vacuum fluctuations governing quantum processes. This revolutionary capacity to engineer light-emitter interaction on metasurfaces promises to advance our fundamental comprehension of quantum phenomena and sets the stage for quantum communication\, sensing\, and information processing breakthroughs. This presentation will show our recent research in quantum optics by using metasurfaces to control light-matter interaction at the nanoscale. Our findings encompass diverse materials interacting with metasurfaces\, such as semiconductor quantum dots\, rare earth atoms\, and biomolecules. Ultimately\, we will delve into the prospective landscape of quantum optics with metasurfaces\, offering a glimpse into the exciting future. \n\n\n\nZOOM information: \n\n\n\nhttps://tamu.zoom.us/j/98156251523?pwd=QVdSdGxtL1UyY0g1L083SU5QR0QrUT09Meeting ID: 981 5625 1523Passcode: 297578 \n\n\n\nOne tap mobile+13462487799\,\,98156251523# US (Houston)+16694449171\,\,98156251523# US
URL:https://iqse.tamu.edu/event/controlling-the-optical-properties-of-matter-by-using-metasurfaces/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20230620T120000
DTEND;TZID=America/Chicago:20230620T130000
DTSTAMP:20260430T020925
CREATED:20230907T205541Z
LAST-MODIFIED:20230907T205543Z
UID:791-1687262400-1687266000@iqse.tamu.edu
SUMMARY:Photon-photon interactions: from conditional phase to quantum vortices
DESCRIPTION:IQSE AMO QO Seminar Series \n\n\n\nPizza will be served for IQSE members at 11:00 am. The talk will start around 11:30 am. \n\n\n\nSpeaker: Dr. Ofer Firstenberg \n\n\n\nVenue: IQSE SEMINAR ROOM (MPHY 578) \n\n\n\nABOUT THE SPEAKER: Prof. Ofer Firstenberg obtained his PhD at the Technion\, Israel\, working on quantum memories and atomic physics in hot vapor systems. He did his postdoctoral training at Harvard and MIT on photon-photon interactions with ultracold atoms. Since 2014\, he has been heading the Light-vs-Matter lab at the Weizmann Institute of Science. The lab studies quantum nonlinear optics with Rydberg atoms\, long-lived quantum memories\, and quantum-enhanced sensors. \n\n\n\nEVENT DETAILS: I will discuss the experimental realization of strong photon-photon interactions in a quantum nonlinear medium based on ultracold Rydberg atoms. This interaction results in a faster phase accumulation for copropagating photon pairs\, producing a quantum vortex-antivortex pair within the two-photon wavefunction. The “conditional”  phase localized between these vortices could be employed for deterministic quantum logic operations. Moreover\, triplets of photons produce vortex lines and a vortex ring\, giving rise to a  conditional phase. The deviation from the  conditional phase\, expected for a quantum Kerr-nonlinear medium\, attests to genuine three-photon interaction. \n\n\n\nZOOM information: \n\n\n\nhttps://tamu.zoom.us/j/98156251523?pwd=QVdSdGxtL1UyY0g1L083SU5QR0QrUT09Meeting ID: 981 5625 1523Passcode: 297578 \n\n\n\nOne tap mobile+13462487799\,\,98156251523# US (Houston)+16694449171\,\,98156251523# US
URL:https://iqse.tamu.edu/event/photon-photon-interactions-from-conditional-phase-to-quantum-vortices/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20230620T110000
DTEND;TZID=America/Chicago:20230620T120000
DTSTAMP:20260430T020925
CREATED:20230907T205337Z
LAST-MODIFIED:20230907T205338Z
UID:788-1687258800-1687262400@iqse.tamu.edu
SUMMARY:Nonlinear Filtering of Quantum Noise for Sensing and Work
DESCRIPTION:IQSE AMO QO Seminar Series \n\n\n\nPizza will be served for IQSE members at 11:00 am. The talk will start around 11:30 am. \n\n\n\nSpeaker: Dr. Gershon Kurizki \n\n\n\nVenue: IQSE SEMINAR ROOM (MPHY 578) \n\n\n\nABOUT THE SPEAKER: Gershon Kurizki holds the G.W. Dunne Professorial Chair in Quantum Optics at the Weizmann Institute of Science. He is a theoretical pioneer of the fields of quantum open-system control and thermodynamics. He discovered the Anti-Zeno Effect in open quantum systems\, found the connection between quantum thermodynamics and the quantum Zeno and anti-Zeno effects and introduced fundamental models of quantum heat machines. He has also made numerous contributions to the theory of quantum measurements and quantum optics. He won the Lamb Award in 2008 and the Humboldt-Meitner Award in 2009 for his discovery of the anti-Zeno effect and his pioneering contributions to the theory of quantum measurements and decoherence control in open quantum systems. Kurizki is Member of the Academia Europea\, Fellow of the American Physical Society\, the Optical Society of America and the British Institute of Physics. He is the author of “The Quantum Matrix” (Oxford University Press\, 2020) and “Thermodynamics and Control of Open Quantum Systems” (Cambridge University Press\, 2022). \n\n\n\nEVENT DETAILS:  \n\n\n\nIn recent works\, we have  theoretically  and experimentally demonstrated several novel schemes [1-5] for the detection of quantum noise signatures\, allowing us to reach unprecedented\, ultrahigh sensitivity to quantum noise deviations from Gaussian\, thermal or near-thermal statistics. Conceptually\, the general principle behind our schemes is the nonlinear filtering of the quantum noise. It can be effected by frequent measurements of   photon  polarization\,  by homodyne measurement or photodetection  of the noise. An alternative to measurements is unitary: nonlinear interferometry of few-mode noise. Both approaches yield nonlinear filtering that transforms thermal or close-to-thermal noise input\,  which is almost void of information on random processes in the medium\, into a strongly non-thermal/non-Gaussian output that is rich in information  on the medium fluctuations. Work extraction from the output is shown to provide a distinct signature of the photon statistical noisw. I will discuss  our  theoretical and experimental implementations of  these novel approaches: \n\n\n\n\nHomodyning measurements of a small fraction of a thermal beam  that renders it non-Gaussian or squeezed and thereby allows work extraction from the beam  [1].\n\n\n\nInterferometers with giant cross-Kerr nonlinearity [2] between thermal photonic beams in cold Rubidium gas: these interferometers are able to render the photonic states strongly non-Gaussian  and thereby extract work [3]. They can also provide sub-shot noise phase sensitivity for thermal input.\n\n\n\nPhotons undergoing polarization fluctuations\, whose temporal correlations are revealed by frequent polarization measurements [4].\n\n\n\nStrong squeezing of initially thermal spin ensembles by frequent photon-probe measurements [5].\n\n\n\n\nThese  nonlinear noise-filtering schemes pave the way to a new generation of quantum noise diagnostic tools\, with promising applications in quantum information\, quantum interferometry and biomedical diagnostics. References [1] T. Opatrný\, A. Misra and G. Kurizki\, “Work Generation from Thermal Noise by Quantum Phase-Sensitive Observation”\, Phys. Rev. Lett. 127\, 040602 (2021). [2] I. Friedler\,  D. Petrosyan\, M. Fleischhauer and G. Kurizki\, “ Long-range interaction and entanglement of slow single-photon pulses”\, Phys. Rev. A 72\, 043803 (2005);”Strongly interacting photons in  hollow-core waveguides”\,  E. Shahmoon et al. Phys Rev. A 83\, 033806 (2011). [3] T. Opatrný\, Š. Bräuer\, A. G. Kofman\, A. Misra\, N. Meher\, O. Firstenberg\, E. Poem\, and G. Kurizki\, “Nonlinear coherent heat machines”\, Science  Advances  9\, 1070 (2023). [4] S. Virzì\,  et al.\,\, “Quantum Zeno and Anti-Zeno Probes of Noise Correlations in Photon Polarization”\, Phys. Rev. Lett. 129\, 030401 (2022); “Sensing microscopic noise events by frequent quantum measurements”\, arXiv 2212.12530. [5] DBR Dasari  et al.\,”Anti-Zeno Purification of Spin Baths by Quantum Probe Measurements”\,  Nature  Commun. 13\, 7527 (2022). \n\n\n\nZOOM information: \n\n\n\nhttps://tamu.zoom.us/j/98156251523?pwd=QVdSdGxtL1UyY0g1L083SU5QR0QrUT09Meeting ID: 981 5625 1523Passcode: 297578 \n\n\n\nOne tap mobile+13462487799\,\,98156251523# US (Houston)+16694449171\,\,98156251523# US
URL:https://iqse.tamu.edu/event/nonlinear-filtering-of-quantum-noise-for-sensing-and-work/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20230606T113000
DTEND;TZID=America/Chicago:20230606T123000
DTSTAMP:20260430T020925
CREATED:20230907T204227Z
LAST-MODIFIED:20230907T204229Z
UID:786-1686051000-1686054600@iqse.tamu.edu
SUMMARY:Photodynamic: From Cancer treatment to breaking down the resistance to antibiotic (or Why Physics is important for health care?)
DESCRIPTION:IQSE AMO QO Seminar Series \n\n\n\nPizza will be served for IQSE members at 11:00 am. The talk will start around 11:30 am. \n\n\n\nSpeaker: Dr. Vanderlei S. Bagnato \n\n\n\nVenue: IQSE SEMINAR ROOM (MPHY 578) \n\n\n\nABOUT THE SPEAKER: Vanderlei S. Bagnato is a professor at the BME and Physics and Astronomy Department at Texas A&M University\, as well as at the Department of Physics and Materials Science at Brazil’s University of São Paulo and the Institute of Physics of São Carlos. Prof. Bagnato is a world-known expert in laser cooling\, trapping neutral atoms\, and applying the principles of optics and lasers in health sciences. Prof. Bagnato is a member of the National Academy of Sciences\, the Pontifical Academy of Sciences of the Vatican\, the World Academy of Sciences\, and the Brazilian Academy of Science\, as well as being a Commander of Brazil’s National Order of Scientific Merit. \n\n\n\nEVENT DETAILS: I will be speaking about my project in BME-TAMU and my work in Brazil involving Biophotonics for cancer and microbial control. We will discuss the instrumental and clinical development for the implementation of PDT\, ranging from cancer to microbiological control with applications in the fight against infections with antibiotic-resistant bacteria. The need to create models comprising basic research\, applied research\, and companies should be presented. In particular\, we will describe the most recent advances that make PDT for skin cancer and premalignant lesions attractive to the country’s public health service. Finally\, the control of vectors for important diseases will be presented. Extension of the conditions of PDT reality in Latin America\, in general\, will be considered. \n\n\n\nZOOM information: \n\n\n\nhttps://tamu.zoom.us/j/98156251523?pwd=QVdSdGxtL1UyY0g1L083SU5QR0QrUT09Meeting ID: 981 5625 1523Passcode: 297578 \n\n\n\nOne tap mobile+13462487799\,\,98156251523# US (Houston)+16694449171\,\,98156251523# US
URL:https://iqse.tamu.edu/event/photodynamic-from-cancer-treatment-to-breaking-down-the-resistance-to-antibiotic-or-why-physics-is-important-for-health-care/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20230530T113000
DTEND;TZID=America/Chicago:20230530T123000
DTSTAMP:20260430T020925
CREATED:20230907T203816Z
LAST-MODIFIED:20230907T203925Z
UID:783-1685446200-1685449800@iqse.tamu.edu
SUMMARY:Characterization and Universal Scaling Properties of a Turbulent Atomic Superfluid
DESCRIPTION:IQSE AMO QO Seminar Series \n\n\n\nPizza will be served for IQSE members at 11:00 am. The talk will start around 11:30 am. \n\n\n\nSpeaker: Dr. Vanderlei S. Bagnato \n\n\n\nVenue: IQSE SEMINAR ROOM (MPHY 578) \n\n\n\nABOUT THE SPEAKER: Vanderlei S. Bagnato is a professor at the BME and Physics and Astronomy Department at Texas A&M University\, as well as at the Department of Physics and Materials Science at Brazil’s University of São Paulo and the Institute of Physics of São Carlos. Prof. Bagnato is a world-known expert in laser cooling\, trapping neutral atoms\, and applying the principles of optics and lasers in health sciences. Prof. Bagnato is a member of the National Academy of Sciences\, the Pontifical Academy of Sciences of the Vatican\, the World Academy of Sciences\, and the Brazilian Academy of Science\, as well as being a Commander of Brazil’s National Order of Scientific Merit. \n\n\n\nEVENT DETAILS: Excitation of the trapped BEC can be done through a combination of fields that promote time distortion of the trapping potential.  These excitations can evolve over time\, promoting energy migration from the largest to the smallest scales in a process called cascade. We perform temporal excitations that consist of deformation and slight rotation of the potential\, causing the system to evolve into a turbulent regime. Simulations demonstrated the generation of solitons\, vortices\, and waves in the sample. Using time of flight techniques\, we measure the moment distribution\, n(k\, t) and from it we obtain the energy spectrum E (k\, t). This makes it possible to identify the inertial regions\, where E (k\, t) is clearly dependent on the power law (inertial region) characteristic of the turbulent regime\, and to measure the energy flow migrating between the scales and their preservation from the absence of dissipation. Finally\, the temporal evolution of the moment distribution allows us to verify the presence of space-time scalability\, which indicates the presence of a class of universality in the phenomenon. The problem is investigated on the basis of the theory of the existence of non-thermal fixed points in the system and a discussion of these aspects is offered. \n\n\n\nZOOM information: \n\n\n\nhttps://tamu.zoom.us/j/98156251523?pwd=QVdSdGxtL1UyY0g1L083SU5QR0QrUT09Meeting ID: 981 5625 1523Passcode: 297578 \n\n\n\nOne tap mobile+13462487799\,\,98156251523# US (Houston)+16694449171\,\,98156251523# US
URL:https://iqse.tamu.edu/event/characterization-and-universal-scaling-properties-of-a-turbulent-atomic-superfluid/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20230523T113000
DTEND;TZID=America/Chicago:20230523T123000
DTSTAMP:20260430T020925
CREATED:20230907T203547Z
LAST-MODIFIED:20230907T203635Z
UID:781-1684841400-1684845000@iqse.tamu.edu
SUMMARY:Monte Carlo method for light transport in complex scattering media and its practical applications in Biomedical Optical Diagnostics\, 3D Computer Graphics and Sensing
DESCRIPTION:IQSE AMO QO Seminar Series \n\n\n\nPizza will be served for IQSE members at 11:00 am. The talk will start around 11:30 am. \n\n\n\nSpeaker: Dr. Alexander Doronin \n\n\n\nVenue: IQSE SEMINAR ROOM (MPHY 578) \n\n\n\nABOUT THE SPEAKER: Dr Alexander Doronin (AlexD) is a Senior Lecturer/Associate Professor in Computer Science at Victoria University of Wellington\, New Zealand. He completed his PhD between Department of Physics and Department of Pathology\, University of Otago\, New Zealand and went on to a semi-industrial postdoctoral fellowship to Computer Graphics laboratory at Yale University\, USA before returning to New Zealand to assume a faculty position at Vic. His research interests are interdisciplinary and lie at the interface between Biophotonics\, Computer Graphics\, and most recently Artificial Intelligence focusing on development of algorithms for simulating light transport in turbid media and their practical applications in novel optical diagnostics modalities. His work also extends to physically-based rendering\, acquisition and creation of realistic light-material interaction models\, colour perception\, translucency\, appearance and biomedical visualization. \n\n\n\nEVENT DETAILS: In silico modelling of photon transport in biological tissues is a key ingredient in the development of novel optical medical imaging\, therapeutic\, 3D computer graphics and sensing modalities necessitating accurate simulation techniques. Monte Carlo method has long established itself as a gold standard and is widely adopted for simulating complex light-matter interactions. In this talk we are going to delve into modern solvers for (vector) Radiative Transfer Equation and Rendering Equations focusing specifically on turbid media and their practical applications in Biophotonics\, Photo-realistic rendering and Sensing. The advantages and limitations of the developed algorithms will be discussed\, formal comparison with analytical solutions and experiments will be presented. Finally\, we will demonstrate how recent advances in Machine Learning could assist and aid with the challenges in light transport calculations. \n\n\n\nZOOM information: \n\n\n\nhttps://tamu.zoom.us/j/98156251523?pwd=QVdSdGxtL1UyY0g1L083SU5QR0QrUT09Meeting ID: 981 5625 1523Passcode: 297578 \n\n\n\nOne tap mobile+13462487799\,\,98156251523# US (Houston)+16694449171\,\,98156251523# US
URL:https://iqse.tamu.edu/event/monte-carlo-method-for-light-transport-in-complex-scattering-media-and-its-practical-applications-in-biomedical-optical-diagnostics-3d-computer-graphics-and-sensing/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20230519T113000
DTEND;TZID=America/Chicago:20230519T123000
DTSTAMP:20260430T020925
CREATED:20230907T202934Z
LAST-MODIFIED:20230907T202935Z
UID:779-1684495800-1684499400@iqse.tamu.edu
SUMMARY:The physics and technology of optical superoscillations
DESCRIPTION:IQSE AMO QO Seminar Series \n\n\n\nPizza will be served for IQSE members at 11:00 am. The talk will start around 11:30 am. \n\n\n\nSpeaker: Dr. Nikolay I. Zheludev \n\n\n\nVenue: IQSE SEMINAR ROOM (MPHY 578) \n\n\n\nABOUT THE SPEAKER: Professor Nikolay Zheludev\, PhD\, DSc is a world leader in the field of nanophotonics and metamaterials. Professor Zheludev received MSc\, PhD and DSc from Moscow State University. His international research careers continued at the University of Southampton in the UK were he became Deputy Director (Physics) of the world-famous Optoelectronics Research Centre and Director of the Centre for Photonic Metamaterials. At NTU Professor Zheludev is founding director of the Centre for Disruptive Photonic Technologies and co-director of The Photonics Institute. His awards include a Senior Leverhulme Research Fellow awarded by the Leverhulme Trust to “outstanding researchers”; a Senior Research Professorship of the Engineering and Physical Science Research Council\, UK that is “awarded to outstanding academic scientists and engineers of international repute” and a Royal Society Wolfson Research Fellowship and Merit Award – given to “respected scientists of outstanding achievement and potential”. \n\n\n\nEVENT DETAILS: Optical superoscillations are rapid\, subwavelength spatial variations of the intensity and phase of light\, occurring in complex electromagnetic fields formed by the interference of several coherent waves. The discovery of superoscillations stimulated a revision of the limits of classical electromagnetism — in particular\, the studies of phenomena such as unlimitedly small energy hotspots\, phase singularities\, energy backflow\, anomalously high wavevectors and their intriguing similarities to the evanescent plasmonic fields on metals. In recent years\, the understanding of superoscillatory light has led to the development of superoscillatory lensing\, imaging and metrology technologies. Dielectric\, metallic and metamaterial nanostructured superoscillatory lenses have been introduced that are able to create hotspots smaller than allowed by conventional lenses. Far-field\, label-free\, non-intrusive deeply subwavelength super-resolution imaging and metrology techniques that exploit high light localization and rapid variation of phase in superoscillatory fields have also been developed\, including new approaches based on artificial intelligence\, that now reach the atomic scale resolution. We review the fundamental properties of superoscillatory optical fields and examine emerging technological applications. \n\n\n\nZOOM information: \n\n\n\nhttps://tamu.zoom.us/j/98156251523?pwd=QVdSdGxtL1UyY0g1L083SU5QR0QrUT09Meeting ID: 981 5625 1523Passcode: 297578 \n\n\n\nOne tap mobile+13462487799\,\,98156251523# US (Houston)+16694449171\,\,98156251523# US
URL:https://iqse.tamu.edu/event/the-physics-and-technology-of-optical-superoscillations/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20230516T113000
DTEND;TZID=America/Chicago:20230516T123000
DTSTAMP:20260430T020925
CREATED:20230907T182846Z
LAST-MODIFIED:20230907T182847Z
UID:777-1684236600-1684240200@iqse.tamu.edu
SUMMARY:Tools of Quantum Statistical Physics: the Good the Bad and the Ugly
DESCRIPTION:IQSE AMO QO Seminar Series \n\n\n\nPizza will be served for IQSE members at 11:00 am. The talk will start around 11:30 am. \n\n\n\nSpeaker: Dr. Marlan Scully \n\n\n\nVenue: IQSE SEMINAR ROOM (MPHY 578) \n\n\n\nABOUT THE SPEAKER: Marlan O. Scully is a laser physics pioneer. His work includes the first quantum theory of the laser with Lamb\, the first demonstrations of lasing without inversion\, the first demonstration of ultraslow light in hot gases\, and the use of quantum coherence to detect anthrax in real time. Furthermore Scully’s work on quantum coherence and correlation effects has shed new light on the foundations of quantum mechanics\, e.g.\, the quantum eraser.He has been elected to the National Academy of Sciences\, American Academy of Arts and Sciences\, Academia Europaea\, and Max Planck Society; has numerous awards including the APS Schawlow prize\, OSA Townes Award\, IEEE Quantum Electronics Award\, Franklin Institute’s Elliott Cresson Medal\, OSA Lomb Medal\, and Humboldt Senior Faculty Prize. More recently he was named Harvard Loeb Lecturer\, received an honorary doctorate from University of Ulm\, and was awarded the OSA’s DPG Hebert Walther Award. \n\n\n\nEVENT DETAILS: The density matrix\, e.g.\, the Wigner representation is the gold standard [1]. The Bohm trajectory approach can be badly misleading [2]. The quantum noise operator approach is useful but a bit “ad hoc” [3]. [1] Hillery\, M.; O’Connell\, R. F.; Scully\, M. O.; Wigner\, E. P.\, Distribution functions in physics: Fundamentals\, Phys. Rep. 1984\, 106\, 121−167. [2] Englert\, B.\, Scully\, M.\, Süssmann\, G.\, Walther\, H.\, Surrealistic Bohm trajectories\, Z. Naturforschung A 47\, 1175–1186 (1992). [3] Scully\, M. O. & Zubairy\, M. S.\, Quantum Optics (Cambridge University Press\, Cambridge\, 1997). \n\n\n\nZOOM information: \n\n\n\nhttps://tamu.zoom.us/j/98156251523?pwd=QVdSdGxtL1UyY0g1L083SU5QR0QrUT09Meeting ID: 981 5625 1523Passcode: 297578 \n\n\n\nOne tap mobile+13462487799\,\,98156251523# US (Houston)+16694449171\,\,98156251523# US
URL:https://iqse.tamu.edu/event/tools-of-quantum-statistical-physics-the-good-the-bad-and-the-ugly/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20230509T113000
DTEND;TZID=America/Chicago:20230509T123000
DTSTAMP:20260430T020925
CREATED:20230907T182423Z
LAST-MODIFIED:20230907T182425Z
UID:775-1683631800-1683635400@iqse.tamu.edu
SUMMARY:Comparison between descriptions on quantum systems: ‘Quantum Jump’ vs ‘Stochastic’ equation
DESCRIPTION:IQSE AMO QO Seminar Series \n\n\n\nPizza will be served for IQSE members at 11:00 am. The talk will start around 11:30 am. \n\n\n\nSpeaker: Dr. Barnabas Kim \n\n\n\nVenue: IQSE SEMINAR ROOM (MPHY 578) \n\n\n\nEVENT DETAILS: After the advent of quantum mechanics\, the investigations have been concentrated on the quantitative accurate descriptions of quantum phenomena\, and reached to quantum field theory which can describe the dynamics for almost everything upto subatomic particles. Although there are many successful theoretical experimental achievements on the quantum systems\, the question on the physical meaning of ‘quantum reality’ has been intriguing but contains ambiguities. The struggle to overcome the difficulties in quantum measurement leads to the alternative interesting descriptions on quantum mechanics\, such as quantum jump with Monte Carlo approach. Another way is to construct a “stochastic” Schrödinger equation with non-Hermitian Hamiltonian to describe the dynamics. As a simple example\, the spontaneous decay in a two-level system\, comparisons between these descriptions will be discussed to show the pros and cons of each description\, which might provide clearer descriptions to quantum systems. [1] M. Scully and S. Zubairy\, “Quantum Optics” (Cambridge\, 1997). [2] M. Tokman\, M. Erukhimova\, Q. Chen\, and A. Belyanin\, “Universal model of strong coupling at the nonlinear resonance in open cavity-QED systems”\, PRA 105\, 053707 (2022). \n\n\n\nZOOM information: \n\n\n\nhttps://tamu.zoom.us/j/98156251523?pwd=QVdSdGxtL1UyY0g1L083SU5QR0QrUT09Meeting ID: 981 5625 1523Passcode: 297578 \n\n\n\nOne tap mobile+13462487799\,\,98156251523# US (Houston)+16694449171\,\,98156251523# US
URL:https://iqse.tamu.edu/event/comparison-between-descriptions-on-quantum-systems-quantum-jump-vs-stochastic-equation/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20230425T113000
DTEND;TZID=America/Chicago:20230425T123000
DTSTAMP:20260430T020925
CREATED:20230907T181427Z
LAST-MODIFIED:20230907T181429Z
UID:773-1682422200-1682425800@iqse.tamu.edu
SUMMARY:Quantum dynamics of many-qubit systems in dissipative nanocavities
DESCRIPTION:IQSE AMO QO Seminar Series \n\n\n\nPizza will be served for IQSE members at 11:00 am. The talk will start around 11:30 am. \n\n\n\nSpeaker: Dr. Alexey Belyanin \n\n\n\nVenue: IQSE SEMINAR ROOM (MPHY 578) \n\n\n\nABOUT THE SPEAKER: Alexey Belyanin has conducted theoretical research in high-energy astrophysics\, quantum optics\, and physics of semiconductors. His current research interests include nonlinear\, ultrafast\, and quantum optics of semiconductor nanostructures\, two-dimensional materials\, topological insulators and metals\, and physics of the optoelectronic devices. For updated information\, current research projects\, and publications\, see http://people.tamu.edu/~belyanin/. \n\n\n\nEVENT DETAILS: Solid-state nanocavity QED attracted much interest as a promising platform for quantum information and quantum sensing systems. A typical scenario involves an ensemble of quantum dots\, defects in crystals\, atoms\, or molecules\, strongly coupled to a quantized electromagnetic field in a dielectric or plasmonic nanocavity. While the treatment of open quantum systems with many degrees of freedom is usually heavily numerical\, here we develop a version of the stochastic Schroedinger-Langevin formalism which allows one to develop analytic insight into nonperturbative nonlinear dynamics in many cases of practical interest. We illustrate it with two examples. In the first example\, the strong coupling regime is realized at the nonlinear resonance between electron\, photon\, and vibrational degrees of freedom. When the strength of such a parametric three-wave interaction is higher than the dissipation rates\, entangled electron-photon-phonon states of GHZ type are formed and the emission spectra acquire a characteristic multi-peak structure. This scenario can describe diverse quantum systems including molecules\, semiconductor quantum dots\, and cavity optomechanics systems. We show how these very different physical models of electron-photon-vibrational coupling can be mapped onto the universal parametric Hamiltonian. In the second example\, we study quantum dynamics of many emitters strongly coupled to a spatially nonuniform field of a plasmonic nanocavity and taking into account the spread of their transition frequencies\, dissipation\, and decoherence for all degrees of freedom. We show how dissipation drives the system into robust many-qubit entangled dark states that are decoupled from the cavity field. The ability to generate and control such states is an important problem for plasmonic nanocavities where the dissipation of a cavity mode is much faster than the relaxation in quantum emitters. \n\n\n\nZOOM information: \n\n\n\nhttps://tamu.zoom.us/j/98156251523?pwd=QVdSdGxtL1UyY0g1L083SU5QR0QrUT09Meeting ID: 981 5625 1523Passcode: 297578 \n\n\n\nOne tap mobile+13462487799\,\,98156251523# US (Houston)+16694449171\,\,98156251523# US
URL:https://iqse.tamu.edu/event/quantum-dynamics-of-many-qubit-systems-in-dissipative-nanocavities/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20230418T113000
DTEND;TZID=America/Chicago:20230418T123000
DTSTAMP:20260430T020925
CREATED:20230907T180802Z
LAST-MODIFIED:20230907T180803Z
UID:771-1681817400-1681821000@iqse.tamu.edu
SUMMARY:Simultaneous Multi-Species Imaging Diagnostics in Gas-Phase Reacting Flows Using Femtosecond Laser Pulses
DESCRIPTION:IQSE AMO QO Seminar Series \n\n\n\nPizza will be served for IQSE members at 11:00 am. The talk will start around 11:30 am. \n\n\n\nSpeaker: Dr. Waruna Kulatilaka \n\n\n\nVenue: IQSE SEMINAR ROOM (MPHY 578) \n\n\n\nABOUT THE SPEAKER:  \n\n\n\nResearch Interests\n\n\n\n\nOptical Diagnostics and Imaging\n\n\n\nLaser Spectroscopy and Ultrafast Lasers\n\n\n\nCombustion and Energy Conversion\n\n\n\nHypersonics and High-Speed Propulsion\n\n\n\nPropellants and Energetics\n\n\n\nExtreme Materials\n\n\n\nRemote Sensing\n\n\n\nFluid Flow and Plasma Diagnostics\n\n\n\nGas Turbine Combustion and IC Engines\n\n\n\n\nEVENT DETAILS: Advances in ultrashort pulse laser diagnostics enable non-intrusive\, high-speed\, multi-dimensional imaging of chemical species in reacting flow applications ranging from fundamental flame studies to practical gas turbine combustors\, hypersonic propulsion systems\, and high-rate material testing. Following the original demonstration of femtosecond two-photon laser-induced fluorescence (fs-TPLIF) of H atoms a decade ago\, our group and associated teams have made significant advances in this area. In particular\, ultrashort\, fs-duration laser methods have enabled interference-free\, kHz-rate imaging schemes for highly reactive atomic species such as H\, O\, and N\, and molecules such as OH\, NO\, CO\, and O2 and flow tracers such as Kr and Xe in combustion and plasma environments. This seminar will first outline several major milestones in ultrashort pulse laser imaging in the last decade\, followed by a discussion of recent developments in multi-species imaging using a single femtosecond laser source. The broadband femtosecond pulses have enabled the simultaneous excitation of several key species (for example\, CO/OH\, H/OH\, H/Kr\, NO/O/O2\, NO/O/O2/CH/OH) and subsequent 1D or 2D fluorescence imaging at kHz-rates\, which is a major step forward in generating model validation data sets for complex turbulent reacting flows ranging from fundamental laboratory flames and low-temperature plasmas to jet engines and hypersonic propulsion test facilities. \n\n\n\nZOOM information: \n\n\n\nhttps://tamu.zoom.us/j/98156251523?pwd=QVdSdGxtL1UyY0g1L083SU5QR0QrUT09Meeting ID: 981 5625 1523Passcode: 297578 \n\n\n\nOne tap mobile+13462487799\,\,98156251523# US (Houston)+16694449171\,\,98156251523# US
URL:https://iqse.tamu.edu/event/simultaneous-multi-species-imaging-diagnostics-in-gas-phase-reacting-flows-using-femtosecond-laser-pulses/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20230417T113000
DTEND;TZID=America/Chicago:20230417T123000
DTSTAMP:20260430T020925
CREATED:20230907T180327Z
LAST-MODIFIED:20230907T180329Z
UID:769-1681731000-1681734600@iqse.tamu.edu
SUMMARY:Complementarity: Is it intrinsic or measurement related?
DESCRIPTION:IQSE AMO QO Seminar Series \n\n\n\nPizza will be served for IQSE members at 11:00 am. The talk will start around 11:30 am. \n\n\n\nSpeaker: Dr. János A. Bergou \n\n\n\nVenue: IQSE SEMINAR ROOM (MPHY 578) \n\n\n\nABOUT THE SPEAKER:  \n\n\n\nResearch Interests\n\n\n\n\nQuantum optics\, quantum information\, measurements\, foundations\n\n\n\n\nEVENT DETAILS: I’ll briefly review the now 100-year-old history of wave-particle duality\, which started with the famous Einstein-Bohr debate gradually evolved into a full complementarity relation. Wave-like and particle-like behavior have their classical analogs. We have shown that besides these two classical realities there is a genuine quantum reality: entanglement\, which is the most important resource for many applications. These three realities add up to a complete complementarity relation\, now not a duality but a triality relation\, and fully exhaust the information content of a quantum state. I’ll discuss how much of this relation is intrinsic to the quantum state and how much is measurement related. \n\n\n\nZOOM information: \n\n\n\nhttps://tamu.zoom.us/j/98156251523?pwd=QVdSdGxtL1UyY0g1L083SU5QR0QrUT09Meeting ID: 981 5625 1523Passcode: 297578 \n\n\n\nOne tap mobile+13462487799\,\,98156251523# US (Houston)+16694449171\,\,98156251523# US
URL:https://iqse.tamu.edu/event/complementarity-is-it-intrinsic-or-measurement-related/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20230414T113000
DTEND;TZID=America/Chicago:20230414T123000
DTSTAMP:20260430T020925
CREATED:20230907T180019Z
LAST-MODIFIED:20230907T180021Z
UID:767-1681471800-1681475400@iqse.tamu.edu
SUMMARY:Broadcasting single-qubit and multi-qubit-entangled states: authentication\, cryptography\, and distributed quantum computation
DESCRIPTION:IQSE AMO QO Seminar Series \n\n\n\nPizza will be served for IQSE members at 11:00 am. The talk will start around 11:30 am. \n\n\n\nSpeaker: Dr. János A. Bergou \n\n\n\nVenue: IQSE SEMINAR ROOM (MPHY 578) \n\n\n\nABOUT THE SPEAKER:  \n\n\n\nResearch Interests\n\n\n\n\nQuantum optics\, quantum information\, measurements\, foundations\n\n\n\n\nEVENT DETAILS: The no-cloning theorem forbids the distribution of an unknown state to more than one receiver. However\, quantum entanglement assisted with measurements provides various pathways to communicate information to parties within a network. For example\, if the sender knows the state\, and the state is chosen from a restricted set of possibilities\, a procedure known as remote state preparation can be used to broadcast a state. In this talk\, we first examine a remote state preparation protocol that can be used to send the state of a qubit\, confined to the equator of the Bloch sphere\, to an arbitrary number of receivers. The entanglement cost is less than that of using teleportation to accomplish the same task. We also present variations on this task: probabilistically sending an unknown qubit state to two receivers\, sending different qubit states to two receivers\, sending qutrit states to two receivers\, and discuss some applications of these protocols. Next\, we generalize this basic broadcasting protocol to broadcast product and multi-partite entangled quantum states in a network where\, in the latter case\, the sender can remotely add phase gates or abort distributing the states. The generalization allows for multiple receivers and senders\, an arbitrary basis rotation\, and adding and deleting senders from the network. We also discuss the case where a phase to be applied to the broadcast states is not known in advance but is provided to a sender encoded in another quantum state. Applications of broadcasting product states include authentication and three-state quantum cryptography. Then\, we study the distribution of a single multiqubit state shared among several receivers entangled with multi-qubit phase gates\, giving the graph states as an example. We show that by coordinating with the sender\, the receivers can assist in performing remote\, distributed measurement-based quantum computation with the Pauli X basis measurement alone. As another application of this\, we discuss the distribution of the multi-qubit GHZ state. We close by a discussion of the capabilities and limitations of implementations using linear optical quantum networks. \n\n\n\nZOOM information: \n\n\n\nhttps://tamu.zoom.us/j/98156251523?pwd=QVdSdGxtL1UyY0g1L083SU5QR0QrUT09Meeting ID: 981 5625 1523Passcode: 297578 \n\n\n\nOne tap mobile+13462487799\,\,98156251523# US (Houston)+16694449171\,\,98156251523# US
URL:https://iqse.tamu.edu/event/broadcasting-single-qubit-and-multi-qubit-entangled-states-authentication-cryptography-and-distributed-quantum-computation/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20230411T113000
DTEND;TZID=America/Chicago:20230411T123000
DTSTAMP:20260430T020925
CREATED:20230907T175528Z
LAST-MODIFIED:20230907T175530Z
UID:765-1681212600-1681216200@iqse.tamu.edu
SUMMARY:THz Time-domain Spectroscopy: Unlocking New Materials Physics in Novel Condensed Matter Systems
DESCRIPTION:IQSE AMO QO Seminar Series \n\n\n\nPizza will be served for IQSE members at 11:00 am. The talk will start around 11:30 am. \n\n\n\nSpeaker: Dr. David J. Hilton \n\n\n\nVenue: IQSE SEMINAR ROOM (MPHY 578) \n\n\n\nABOUT THE SPEAKER: Dr. Hilton’s research program focuses on the study of insulator-to-metal phase transitions in transition metal oxides and ultrafast investigations of high mobility 2DEGs and dichalcogenides. Primary research tools are ultrafast laser systems\, nonlinear optical systems\, and high magnetic field spectroscopy\, both at Baylor as well as in collaboration with the National High Magnetic Field Laboratory in Tallahassee\, FL. \n\n\n\nEVENT DETAILS: Terahertz time-domain spectroscopy is it powerful optical technique that can measure low energy excitations and condensed matter materials on the sub-picosecond time scale. In this talk\, I will discuss two recent experiments using terahertz time-domain spectroscopy to demonstrate. In the first part of my talk\, I will discuss recent experiments to develop near and middle infrared electronic materials for next generation communications platforms. In current wireless technology\, silicon and silicon -germanium are commonly-used semiconductors as emitters in wireless communications.  As bandwidth requirements continue to increase from gigahertz into the lower terahertz band\, novel electronic materials will be required as next generation materials.  Our experiments examine one such material\, bismuth doped gallium arsenide\, and its suitability for future electronics applications. In the second part of my talk\, I will discuss our recent experiments using strain to suppress superconductivity simple class of iron-based superconductors.  FeSe is the prototype “11” iron-based superconductor with the transition temperature in the bulk of 8 to 10 Kelvin.  We demonstrate in strained FeSe samples via growth on a lattice mismatched super rate\, the suppression of the superconducting dome with a TC < 2 K.  In the final part of my talk\, I will discuss our future planes experiments with this material system to study the ground state in Fe1-xCuxSe near its quantum critical point (xc =1.5%)\, which should permit us to dynamically characterize this Quantum phase transition. \n\n\n\nZOOM information: \n\n\n\nhttps://tamu.zoom.us/j/98156251523?pwd=QVdSdGxtL1UyY0g1L083SU5QR0QrUT09Meeting ID: 981 5625 1523Passcode: 297578 \n\n\n\nOne tap mobile+13462487799\,\,98156251523# US (Houston)+16694449171\,\,98156251523# US
URL:https://iqse.tamu.edu/event/thz-time-domain-spectroscopy-unlocking-new-materials-physics-in-novel-condensed-matter-systems/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20230404T113000
DTEND;TZID=America/Chicago:20230404T123000
DTSTAMP:20260430T020925
CREATED:20230907T173949Z
LAST-MODIFIED:20230907T173950Z
UID:763-1680607800-1680611400@iqse.tamu.edu
SUMMARY:Solutions for 3D Bioimaging with Applications in Host Pathogen Science and Bio-energy
DESCRIPTION:IQSE AMO QO Seminar Series \n\n\n\nPizza will be served for IQSE members at 11:00 am. The talk will start around 11:30 am. \n\n\n\nSpeaker: Dr. Ted A. Laurence  \n\n\n\nVenue: IQSE SEMINAR ROOM (MPHY 578) \n\n\n\nABOUT THE SPEAKER:  \n\n\n\nResearch Interests\n\n\n\n\nProtein folding\n\n\n\nProtein-protein and protein-DNA interactions\n\n\n\nSingle molecule detection and spectroscopy\n\n\n\nSurface-enhanced Raman spectroscopy\n\n\n\nUltra-sensitive micro-spectroscopy of optical materials\n\n\n\n\nEVENT DETAILS: Dynamic 3D Imaging is an enduring need for understanding biological systems and interactions.  For host pathogen science\, such imaging is necessary to understand the sequence and timing of events in pathogen invasion of host cells.  The interaction of bacteria and fungi with plant roots (the rhizosphere) and bacteria and algae in aqueous environments can affect growth of plants or algae positively or negatively\, and understanding these interactions are crucial to development of effective bioenergy.  At LLNL\, we have applied multimodal multiphoton microscopy in combination with adaptive optics to the imaging of the rhizosphere without labeling and lattice light sheet microscopy to the imaging of the behavior of host cells upon infection by pathogenic bacteria.  We are also developing a new 3D quantum imaging technique (3DQ) that will allow us to obtain multiple dimensions of information for each fluorescence emission or scattering event.  I will discuss the basics of each of these solutions and the challenges each faces to reach its potential. \n\n\n\nZOOM information: \n\n\n\nhttps://tamu.zoom.us/j/98156251523?pwd=QVdSdGxtL1UyY0g1L083SU5QR0QrUT09Meeting ID: 981 5625 1523Passcode: 297578 \n\n\n\nOne tap mobile+13462487799\,\,98156251523# US (Houston)+16694449171\,\,98156251523# US
URL:https://iqse.tamu.edu/event/solutions-for-3d-bioimaging-with-applications-in-host-pathogen-science-and-bio-energy/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20230328T113000
DTEND;TZID=America/Chicago:20230328T123000
DTSTAMP:20260430T020925
CREATED:20230907T173345Z
LAST-MODIFIED:20230907T173347Z
UID:761-1680003000-1680006600@iqse.tamu.edu
SUMMARY:Biological Photonic Crystal Sensors: Materials\, Applications\, and Fusion with Machine Learning
DESCRIPTION:IQSE AMO QO Seminar Series \n\n\n\nPizza will be served for IQSE members at 11:00 am. The talk will start around 11:30 am. \n\n\n\nSpeaker: Dr. Alan Wang \n\n\n\nVenue: IQSE SEMINAR ROOM (MPHY 578) \n\n\n\nABOUT THE SPEAKER: Alan Wang joined Baylor University in August 2022. He received his B.S. degree from Tsinghua University\, and an M.S. degree from the Institute of Semiconductors\, Chinese Academy of Sciences\, Beijing\, P.R. China\, in 2000 and 2003\, respectively\, and his Ph.D. degree in electrical and computer engineering from the University of Texas at Austin in 2006. From 2007 to 2011\, he was with Omega Optics\, Inc.\, Austin\, Texas\, where he served as the chief research scientist for multiple federal funded Small Business Innovation Research projects. From August 2011 to July 2022\, he was an Assistant Professor to Full Professor at Oregon State University in the School of Electrical Engineering and Computer Science\, leading the Engineering Photonics Research Laboratory (EPRL) to develop cutting-edge photonic materials and devices research. He has more than 110 journal articles and 120 conference publications\, including numerous invited and plenary presentations. He holds seven U.S. patents and is a senior member of IEEE\, SPIE and OSA. \n\n\n\nEVENT DETAILS: Diatoms are microalgae with unique photonic crystal structures\, which can be found in every habitat where water is present. Their abundance and wide distribution make them ideal materials for a wide range of applications as living organisms. We have developed hybrid diatom photonic crystals with plasmonic nanoparticles (NPs) as ultra-sensitive\, low-cost substrates for surface-enhanced Raman scattering (SERS) sensing. The enhancement comes from the photonic crystal enhancement of diatom frustules that could improve the hot-spots of plasmonic NPs. Recently\, we reported the unique micro-fluidic flow\, analyte concentration effect\, and thin layer chromatography (TLC) on diatom biosilica\, which enables selection\, separation\, detection\, and analysis of complex chemical and biological samples. Especially\, we developed a lab-on-a-chip technology based on TLC-SERS sensing and successfully applied it to various applications including food safety\, illicit drug residue sensing\, and biomarker detection. As a relatively new analytical tool\, SERS techniques face tremendous challenges in quantitative sensing due to the intrinsic variation of the enhancement factors. In the last topic\, we will discuss our efforts of applying machine learning including support vector regression and convolutional neural network to analyze the data collected by diatom photonic crystal biosensors\, which showed superior performance in quantitative sensing.    \n\n\n\nZOOM information: \n\n\n\nhttps://tamu.zoom.us/j/98156251523?pwd=QVdSdGxtL1UyY0g1L083SU5QR0QrUT09Meeting ID: 981 5625 1523Passcode: 297578 \n\n\n\nOne tap mobile+13462487799\,\,98156251523# US (Houston)+16694449171\,\,98156251523# US
URL:https://iqse.tamu.edu/event/biological-photonic-crystal-sensors-materials-applications-and-fusion-with-machine-learning/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20230324T113000
DTEND;TZID=America/Chicago:20230324T123000
DTSTAMP:20260430T020925
CREATED:20230907T173047Z
LAST-MODIFIED:20230907T173049Z
UID:759-1679657400-1679661000@iqse.tamu.edu
SUMMARY:Ultraviolet superradiance from mega-networks of tryptophan in biological architectures
DESCRIPTION:IQSE AMO QO Seminar Series \n\n\n\nPizza will be served for IQSE members at 11:00 am. The talk will start around 11:30 am. \n\n\n\nSpeaker: Dr. Philip Kurian \n\n\n\nVenue: IQSE SEMINAR ROOM (MPHY 578) \n\n\n\nABOUT THE SPEAKER: Dr. Philip Kurian is a theoretical physicist\, (re)search(ing) scientist\, and essayist\, serving as principal investigator and founding director of the Quantum Biology Laboratory (https://quantumbiolab.com) at Howard University. Beginning his career as a math teacher in North Philadelphia\, and then completing his doctorate in physics at Howard after a stint at NASA Goddard Space Flight Center\, Dr. Kurian is now the recipient of fellowships\, grants\, and awards from the Alfred P. Sloan Foundation\, U.S.-Italy Fulbright Commission\, Whole Genome Science Foundation\, National Science Foundation\, and the National Institutes of Health. His laboratory studies how collective and cooperative quantum behaviors can explain biological phenomena at the mesoscopic\, organismal\, and clinical scales\, including in neurodegeneration\, cancer\, and human consciousness. \n\n\n\nEVENT DETAILS: Networks of tryptophan – an aromatic amino acid with strong fluorescent response – are ubiquitous in biological systems\, forming diverse architectures in transmembrane proteins\, cytoskeletal filaments\, sub-neuronal elements\, photoreceptor complexes\, virion capsids\, and other cellular structures. We analyze the cooperative effects induced by ultraviolet (UV) excitation of several biologically relevant tryptophan mega-networks\, thus giving insight into novel mechanisms for cellular signaling and control. Our theoretical analysis in the single-excitation manifold predicts the formation of strongly superradiant states due to collective radiative interactions among organized arrangements of up to more than 100\,000 tryptophan UV-excited transition dipoles in microtubule architectures\, which leads to an enhancement of the fluorescence quantum yield that is confirmed by our experiments. We demonstrate the observed consequences of this superradiant behavior for hierarchically organized tubulin structures in their fluorescence quantum yield\, which increases in different geometric regimes at thermal equilibrium before saturation – highlighting the effect’s persistence in the presence of disorder. In light of the data’s strong indication of UV superradiance from such tryptophan mega-networks\, potential applications for optical detection and discrimination of viral pathogens will be discussed. \n\n\n\nZOOM information: \n\n\n\nhttps://tamu.zoom.us/j/98156251523?pwd=QVdSdGxtL1UyY0g1L083SU5QR0QrUT09Meeting ID: 981 5625 1523Passcode: 297578 \n\n\n\nOne tap mobile+13462487799\,\,98156251523# US (Houston)+16694449171\,\,98156251523# US
URL:https://iqse.tamu.edu/event/ultraviolet-superradiance-from-mega-networks-of-tryptophan-in-biological-architectures/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20230321T113000
DTEND;TZID=America/Chicago:20230321T123000
DTSTAMP:20260430T020925
CREATED:20230907T172555Z
LAST-MODIFIED:20230907T172557Z
UID:757-1679398200-1679401800@iqse.tamu.edu
SUMMARY:Coupled electron and nuclear dynamics in molecules revealed by femtosecond x ray and electron pulses and by twisted light
DESCRIPTION:IQSE AMO QO Seminar Series \n\n\n\nPizza will be served for IQSE members at 11:00 am. The talk will start around 11:30 am. \n\n\n\nSpeaker: Dr. Shaul Mukamel \n\n\n\nVenue: IQSE SEMINAR ROOM (MPHY 578) \n\n\n\nABOUT THE SPEAKER: Novel sources of soft and hard X ray pulses  open  up new  windows into electron and nuclear dynamics in molecules with a remarkable combination of temporal\, spectral and spatial  resolutions. Twisted light adds additional  remarkable probes of chirality. These new techniques and their  simulation protocols will be surveyed and analyzed for nonadiabatic relaxation and photoisomerization.    \n\n\n\nEVENT DETAILS: Professor Mukamel is a theoretical chemical physicist who studies molecules by measuring their response to short pulses of light. He pioneered the field of coherent ultrafast multidimensional molecular spectroscopy. Professor Mukamel is a member of the National Academy of Sciences and the American Academy of Arts and Sciences and a fellow of the Optical Society of America and the American Physical Society. Professor Mukamel’s honors include the William F. Meggers Award\, Optical Society of America; the Ahmed Zewail ACS Award in Ultrafast Science and Technology\, American Chemical Society; the Mulliken Prize Medal\, University of Chicago; and the Earle K. Plyler Prize for Molecular Spectroscopy and the Arthur L. Schawlow Prize in Laser Science\, both from the American Physical Society. \n\n\n\nZOOM information: \n\n\n\nhttps://tamu.zoom.us/j/98156251523?pwd=QVdSdGxtL1UyY0g1L083SU5QR0QrUT09Meeting ID: 981 5625 1523Passcode: 297578 \n\n\n\nOne tap mobile+13462487799\,\,98156251523# US (Houston)+16694449171\,\,98156251523# US
URL:https://iqse.tamu.edu/event/coupled-electron-and-nuclear-dynamics-in-molecules-revealed-by-femtosecond-x-ray-and-electron-pulses-and-by-twisted-light/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20230314T113000
DTEND;TZID=America/Chicago:20230314T123000
DTSTAMP:20260430T020925
CREATED:20230907T172211Z
LAST-MODIFIED:20230907T172213Z
UID:755-1678793400-1678797000@iqse.tamu.edu
SUMMARY:Coherent states of photonic dimers
DESCRIPTION:IQSE AMO QO Seminar Series \n\n\n\nPizza will be served for IQSE members at 11:00 am. The talk will start around 11:30 am. \n\n\n\nSpeaker: Dr. Jung-Tsung Shen \n\n\n\nVenue: IQSE SEMINAR ROOM (MPHY 578) \n\n\n\nABOUT THE SPEAKER: I received my Ph.D. degree in condensed matter physics from MIT (under Patrick Lee\, who was Marlan’s student)\, and did a post-doc at the Ginzton Labs at Stanford University. While I was a graduate student\, I received a Bell Labs fellowship and interned at the theoretical physics\, semiconductor physics\, and optical physics departments every summer. I am currently at the Electrical and Systems Engineering Department at Washington University in St. Louis. Our recent work in quantum photonic logic gates and quantum imaging won the 2018 NSF Quantum Leap Award and the 2021 Chan Zuckerberg Initiative Deep Tissue Imaging Award\, respectively. \n\n\n\nEVENT DETAILS: In recent years\, the bound states of light quanta were theoretically proposed in engineered nonlinear optical media\, and have since been experimentally confirmed in ultra-cold atom systems. The simplest realization of the photonic bound states is a two-photon dimer. Inspired by the remarkable optical properties of lasers and the penetrating insights into the role played by photons in the description of light beams offered by the coherent states\, we investigate the scenarios of a different type of coherent many-photon quantum light source which\, instead of single photons\, outputs a coherent state of photonic dimers\, and study the optical coherence properties of the photonic dimers. I shall also discuss\, from a theoretical point of view\, the generalizations of the coherent states of dimers when the overlaps between the dimers are varied via the controlled parameters of the system. In particular\, we discuss the two limits which are of great scientific interests\, namely\, the Bose-Einstein condensation (BEC) and the Bardeen-Cooper-Schrieffer (BCS) limit\, respectively.   \n\n\n\nZOOM information: \n\n\n\nhttps://tamu.zoom.us/j/98156251523?pwd=QVdSdGxtL1UyY0g1L083SU5QR0QrUT09Meeting ID: 981 5625 1523Passcode: 297578 \n\n\n\nOne tap mobile+13462487799\,\,98156251523# US (Houston)+16694449171\,\,98156251523# US
URL:https://iqse.tamu.edu/event/coherent-states-of-photonic-dimers/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20230307T113000
DTEND;TZID=America/Chicago:20230307T123000
DTSTAMP:20260430T020925
CREATED:20230907T162218Z
LAST-MODIFIED:20230907T162220Z
UID:753-1678188600-1678192200@iqse.tamu.edu
SUMMARY:Quantifying quantum chaos from microcanonical fluctuations
DESCRIPTION:IQSE AMO QO Seminar Series \n\n\n\nPizza will be served for IQSE members at 11:00 am. The talk will start around 11:30 am. \n\n\n\nSpeaker: Dr. Joaquin Rodriguez-Nieva \n\n\n\nVenue: IQSE SEMINAR ROOM (MPHY 578) \n\n\n\nABOUT THE SPEAKER: Quantum matter away from thermodynamic equilibrium can exhibit rich classes of dynamical behaviors that have no equilibrium analogue. An overarching goal of my research is to discover universal principles governing the dynamics and thermalization of quantum matter beyond equilibrium paradigms. Such principles can be applied to describe dynamics in a wide range of many-body systems\, from electrons in solid-state materials to cold atoms in optical lattices to ensembles of spin defects\, in spite of the apparent microscopic differences between such systems. More specifically\, my research involves developing theoretical frameworks at the interface between non-equilibrium statistical mechanics and quantum information that can be used to describe\, understand and\, ultimately\, control these novel dynamical behaviors. My research also studies how to exploit these novel behaviors for potential applications in emergent areas such as quantum sensing and metrology. Other research interests include the physics of low-dimensional electronic systems\, and developing a deeper understanding of machine learning by drawing insights from statistical mechanics. \n\n\n\nEVENT DETAILS: The emergence of statistical mechanics in isolated quantum many-body systems has been a topic of foundational interest since the birth of quantum mechanics. Unlike classical systems\, notions of chaos and ergodicity in many-body quantum systems still remain ill-defined. For this reason\, designing quantitative measures of quantum chaos are of fundamental importance. One widely-accepted definition is through the random matrix behavior of Hamiltonian eigenstates. In this talk\, I will introduce an eigenstate metric for quantum chaos that quantifies the distance between the microcanonical distribution of entanglement entropy produced by eigenstates and that produced by pure random states with appropriate constraints. We find that\, for chaotic systems\, the distribution of entanglement entropy of eigenstates deviates from random matrix theory predictions for all models and systems sizes studied. In particular\, we show that the variance of the microcanonical entanglement entropy distribution of eigenstates is an extremely sensitive probe of quantum chaos. I will show numerical results in a variety of physical Hamiltonians having both chaotic and integrable limits as well as Floquet systems with and without randomness. When employing our metric of chaos in Hamiltonian systems known to exhibit strongly chaotic behavior\, we find that deviations from random matrix behavior are negligible only in small pockets of parameter space. This suggests that maximally chaotic Hamiltonians\, those with eigenstates exhibiting random matrix behavior\, exist only in fine-tuned regions of parameter space. \n\n\n\nZOOM information: \n\n\n\nhttps://tamu.zoom.us/j/98156251523?pwd=QVdSdGxtL1UyY0g1L083SU5QR0QrUT09Meeting ID: 981 5625 1523Passcode: 297578 \n\n\n\nOne tap mobile+13462487799\,\,98156251523# US (Houston)+16694449171\,\,98156251523# US
URL:https://iqse.tamu.edu/event/quantifying-quantum-chaos-from-microcanonical-fluctuations/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20230228T113000
DTEND;TZID=America/Chicago:20230228T123000
DTSTAMP:20260430T020925
CREATED:20230907T161424Z
LAST-MODIFIED:20230907T161426Z
UID:749-1677583800-1677587400@iqse.tamu.edu
SUMMARY:Holography\, Wormholes\, and ER=EPR
DESCRIPTION:IQSE AMO QO Seminar Series \n\n\n\nPizza will be served for IQSE members at 11:00 am. The talk will start around 11:30 am. \n\n\n\nSpeaker: Dr. Arash Azizi \n\n\n\nVenue: IQSE SEMINAR ROOM (MPHY 578) \n\n\n\nEVENT DETAILS: Maldacena proposed a bold suggestion in 1997: Gravity (e.g.\, Anti-de Sitter spacetime) can be realized as a gauge theory (e.g.\, Conformal Field Theory) in one dimension less. In other words\, gravity is a holographic dual of quantum field theory without gravity. There has been an enormous number of tests for this conjecture. Furthermore\, Maldacena and Susskind in 2013 conjectured ER=EPR. ER stands for Einstein-Rosen bridge\, i.e.\, wormhole\, and EPR is referring to the famous Einstein-Podolsky-Rosen argument\, i.e.\, entanglement. According to their conjecture\, every entangled state\, even the simple singlet state of two spins can be realized by a wormhole. In this talk\, I will give a general review on these exciting topics. opportunities. \n\n\n\nZOOM information: \n\n\n\nhttps://tamu.zoom.us/j/98156251523?pwd=QVdSdGxtL1UyY0g1L083SU5QR0QrUT09Meeting ID: 981 5625 1523Passcode: 297578 \n\n\n\nOne tap mobile+13462487799\,\,98156251523# US (Houston)+16694449171\,\,98156251523# US
URL:https://iqse.tamu.edu/event/holography-wormholes-and-erepr/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20230221T113000
DTEND;TZID=America/Chicago:20230221T123000
DTSTAMP:20260430T020925
CREATED:20230907T160850Z
LAST-MODIFIED:20230907T160852Z
UID:746-1676979000-1676982600@iqse.tamu.edu
SUMMARY:Customizing laser speckle statistics
DESCRIPTION:IQSE AMO QO Seminar Series \n\n\n\nPizza will be served for IQSE members at 11:00 am. The talk will start around 11:30 am. \n\n\n\nSpeaker: Dr. Hui Cao \n\n\n\nVenue: IQSE SEMINAR ROOM (MPHY 578) \n\n\n\nABOUT THE SPEAKER: Hui Cao’s research interests and activities are in the areas of mesoscopic physics\, complex photonic materials and devices\, nanophotonics\, and biophotonics. She has conducted experimental studies on unconventional lasers including random lasers and chaotic microcavity lasers\, and found their applications in speckle-free imaging\, multi-modality microscopy\, and parallel random number generation. Another research focus of hers is coherent control of light transport in diffusive media and multimode fibers\, with applications to deep-tissue imaging and endoscopy. Cao has also been creating and controlling complex light fields\, and customizing the intensity statistics of laser speckle patterns for structured illumination microscopy. In addition to fundamental studies on complex\, chaotic and disordered systems\, she has harnessed disorder for photonic device applications\, e.g.\, she invented a compact spectrometer based on a disordered photonic chip. \n\n\n\nEVENT DETAILS: Laser speckles commonly demonstrate Rayleigh intensity statistics and only possess short-range correlations. Recently we develop a method of customizing the intensity statistics of speckle patterns and introducing long-range spatial correlations among the speckle grains. The tailored speckle patterns exhibit radically different topologies and varying degrees of spatial order. The various families of speckles are created by encoding high-order correlations into the phase front of a monochromatic laser beam with a spatial light modulator. This work provides a versatile framework for creating complex light fields and controlling their statistical properties for varied applications in microscopy\, imaging\, and optical manipulation. As an example\, we design and create special speckle patterns for parallelized nonlinear pattern-illumination microscopy based on fluorescence photoswitching. In a proof-of-principle experimental demonstration\, we obtain a spatial resolution three times higher than the diffraction limit of the illumination optics in our setup. Furthermore\, the tailored speckles vastly outperform standard speckles. \n\n\n\nZOOM information: \n\n\n\nhttps://tamu.zoom.us/j/98156251523?pwd=QVdSdGxtL1UyY0g1L083SU5QR0QrUT09Meeting ID: 981 5625 1523Passcode: 297578 \n\n\n\nOne tap mobile+13462487799\,\,98156251523# US (Houston)+16694449171\,\,98156251523# US
URL:https://iqse.tamu.edu/event/customizing-laser-speckle-statistics/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20230214T113000
DTEND;TZID=America/Chicago:20230214T123000
DTSTAMP:20260430T020925
CREATED:20230906T181420Z
LAST-MODIFIED:20230907T160519Z
UID:681-1676374200-1676377800@iqse.tamu.edu
SUMMARY:Opportunities in Laser-plasma Interaction Experiments with High Power Ultrashort Laser Pulses
DESCRIPTION:IQSE AMO QO Seminar Series \n\n\n\nPizza will be served for IQSE members at 11:00 am. The talk will start around 11:30 am. \n\n\n\nSpeaker: Dr. Zhenhuan Yi \n\n\n\nVenue: IQSE SEMINAR ROOM (MPHY 578) \n\n\n\nABOUT THE SPEAKER: Zhenhuan Yi is a Research Assistant Professor at the Department of Physics and Astronomy and at the Institute for Quantum Science and Engineering\, Texas A&M University. His research interests include bio-photonics; tip/surface-enhanced Raman/coherent Raman; Low frequency/Tera Hertz Raman; Coherent Anti-Stokes Raman (FAST-CARS/MIRA CARS) detection of molecules; Remote sensing; Gain-swept backward lasing effect; Atomic physics\, Superfluorescence and superradiance in atomic systems\, Laser induced breakdown/plasma; Quantum Informatics\, Quantum State manipulation and transmission \n\n\n\nEVENT DETAILS: Generating high peak power laser pulses has been a hot pursuit for decades\, as highlighted by the 2018 Nobel prize in physics and recent news from the National Ignition Facility. Tera-Watt and Peta-Watt pulses have been achieved with Chirped Pulse Amplification techniques. Amplification by stimulated Raman scattering may be a key to the next generation of higher peak power lasers. IQSE’s high-power synchronized picosecond and femtosecond pulse lasers have facilitated many fundamental researches and applications of high-power pulses. This talk will overview the systems and researches conducted as well as future plans to stimulate discussions and collaboration opportunities. \n\n\n\nZOOM information: \n\n\n\nhttps://tamu.zoom.us/j/98156251523?pwd=QVdSdGxtL1UyY0g1L083SU5QR0QrUT09Meeting ID: 981 5625 1523Passcode: 297578 \n\n\n\nOne tap mobile+13462487799\,\,98156251523# US (Houston)+16694449171\,\,98156251523# US
URL:https://iqse.tamu.edu/event/opportunities-in-laser-plasma-interaction-experiments-with-high-power-ultrashort-laser-pulses/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20230207T113000
DTEND;TZID=America/Chicago:20230207T123000
DTSTAMP:20260430T020925
CREATED:20230906T180322Z
LAST-MODIFIED:20230906T181229Z
UID:677-1675769400-1675773000@iqse.tamu.edu
SUMMARY:Metasurface polarization optics
DESCRIPTION:IQSE AMO QO Seminar Series \n\n\n\nPizza will be served for IQSE members at 11:00 am. The talk will start around 11:30 am. \n\n\n\nSpeaker: Dr. Noah A. Rubin \n\n\n\nVenue: IQSE SEMINAR ROOM (MPHY 578) \n\n\n\nABOUT THE SPEAKER: Noah A. Rubin is a researcher studying optics at Harvard University in Cambridge\, MA. Previously\, he earned by Ph.D. at Harvard and\, before that\, received a bachelor’s degree in physics from the University of Pennsylvania (Philadelphia\, PA) in 2015. \n\n\n\nEVENT DETAILS: Metasurfaces are an emergent class of subwavelength diffractive optics. The individual elements comprising a metasurface may be designed with polarization sensitivity [1\, 2] – in this way\, metasurfaces can enable optical elements whose far-fields exhibit custom polarization-dependence. Using relatively simple design heuristics based on the Jones calculus\, a variety of polarization-dependent optical elements can be realized. These include gratings (of particular interest for polarimetry [3\, 4])\, lenses\, and holograms (the most general case [5]). In this talk\, we discuss these metasurface polarization optics\, their historical antecedents\, their design\, and new polarization-sensitive optical elements based on metasurfaces. Metasurfaces ideally provide new additions to the traditional toolkit of polarization optics and may soon reach a level of maturity that sees their inclusion in practical optical systems for polarimetric remote sensing and other applications. \n\n\n\n\nRubin\, N. A. et al.\, 2021: Polarization in diffractive optics and metasurfaces. Opt. and Phot. 13(4)\, 836-970.\n\n\n\nArbabi\, A. et al.\, 2015: Dielectric metasurfaces for complete control of phase and polarization with subwavelength spatial resolution and high transmission. Nature Nanotechnology\, 10 (11)\, 937-943.\n\n\n\nRubin\, N. A.\, et al.\, 2019: Matrix Fourier optics enables a compact full-Stokes polarization camera. Science 365(6448)\, eaax1839.\n\n\n\nRubin\, N. A.\, et al.\, 2022: Imaging polarimetry through metasurface polarization gratings. Optics Express. 30 (6) 9389-9412.\n\n\n\nRubin\, N.A.\, et al.\, 2021: Jones matrix holography with metasurfaces. Science Adv.\, 7 (33).\n\n\n\n\nZOOM information: \n\n\n\nhttps://tamu.zoom.us/j/98156251523?pwd=QVdSdGxtL1UyY0g1L083SU5QR0QrUT09Meeting ID: 981 5625 1523Passcode: 297578 \n\n\n\nOne tap mobile+13462487799\,\,98156251523# US (Houston)+16694449171\,\,98156251523# US
URL:https://iqse.tamu.edu/event/metasurface-polarization-optics/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20230131T111000
DTEND;TZID=America/Chicago:20230131T121000
DTSTAMP:20260430T020925
CREATED:20230906T175246Z
LAST-MODIFIED:20230906T175248Z
UID:674-1675163400-1675167000@iqse.tamu.edu
SUMMARY:Brain-inspired quantum machine learning
DESCRIPTION:IQSE AMO QO Seminar Series \n\n\n\nPizza will be served for IQSE members at 10:40 am. The talk will start around 11:10 am. \n\n\n\nSpeaker: Dr. Susanne Yelin \n\n\n\nVenue: IQSE SEMINAR ROOM (MPHY 578) \n\n\n\nABOUT THE SPEAKER: Dr. Yelin is Professor in Residence at the Department of Physics at Harvard University and Professor at the Department of Physics at the University of Connecticut. Prof. Yelin’s research interests are in theoretical quantum optics and quantum information science. Current research directions include quantum control of ultracold polar molecules\, investigation of novel coherence-based optical elements\, single-photon nonlinear optics using dipolar systems\, coherent metamaterials and negative refractivity\, coherent control in condensed matter systems\, and superradiance. \n\n\n\nEVENT DETAILS: Quantum neuromorphic computing (QNC) is a subfield of quantum machine learning (QML) that capitalizes on inherent system dynamics. As a result\, QNC can run on contem- porary\, noisy quantum hardware and is poised to realize challenging algorithms in the near term. We show that a present-day programmable quantum simulator has all the features to allow the learning of several cognitive tasks such as multitasking\, decision-making\, and long-term memory by taking advantage of several key features of such a platform. One key element yet to be added to such modes is the characterization of the requisite dynamics for universal quantum neuromorphic computation. We address this issue by proposing a quantum perceptron\, a simple mathematical model for a neuron that is the building block of various machine learning architectures and demonstrate that it can realize universal quantum computation. The effectiveness of this architecture can then also be shown by applying it to\, e.g.\, calculating the inner products between quantum states\, entanglement witnessing\, and quantum metrology. \n\n\n\nZOOM information: \n\n\n\nhttps://tamu.zoom.us/j/98156251523?pwd=QVdSdGxtL1UyY0g1L083SU5QR0QrUT09Meeting ID: 981 5625 1523Passcode: 297578 \n\n\n\nOne tap mobile+13462487799\,\,98156251523# US (Houston)+16694449171\,\,98156251523# US
URL:https://iqse.tamu.edu/event/brain-inspired-quantum-machine-learning/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20230124T080000
DTEND;TZID=America/Chicago:20230124T170000
DTSTAMP:20260430T020925
CREATED:20230906T174141Z
LAST-MODIFIED:20230906T174143Z
UID:670-1674547200-1674579600@iqse.tamu.edu
SUMMARY:Quantum optics with ultra-narrow nuclear resonances and x-ray photons
DESCRIPTION:IQSE AMO QO Seminar Series \n\n\n\nPizza will be served for IQSE members at 11:00 am. The talk will start around 11:30 am. \n\n\n\nSpeaker: Dr. Olga Kocharovskaya \n\n\n\nVenue: IQSE SEMINAR ROOM (MPHY 578) \n\n\n\nABOUT THE SPEAKER: Olga Kocharovskaya’s research is focused on Quantum\, Coherent and Nonlinear Optics\, Quantum Information Science\, Attosecond Physics and X-ray Optics. She made pioneering and seminal contributions on Electromagnetically Induced Transparency\, Lasing Without Inversion and Coherent Control of the Nuclear Transitions. Before joying the Physics Department\, TAMU in 1998\, she hold the Leading Scientist position at the Institute of Applied Physics\, RAS and the Adjunct Independent Researcher position at the Free University of Brussels. She is a Fellow of both American Physical Society (2005) and Optical Society of America (1997). She received the Distinguished Scientist Award of the Texas A&M University Chapter of Sigma Xi (2012)\, University Distinguished Professor Award (2011)\, Association of Former Students and Texas A&M University Distinguished Achievement Award in Research (2005)\, Willis Lamb Award for achievements in laser science and quantum electronics (1998) and Outstanding Young Professor of the Russian Federation Award of the Russian Academy of Science (1996). \n\n\n\nEVENT DETAILS: Long-lived nuclear isomer transitions hold a promise for revolutionizing the quantum metrology: realization of nuclear clocks\, chronometric geodesy and gravimetry\, compact long-lived nuclear memory\, high-resolution coherent forward nuclear spectroscopy\, search for time variation of the fundamental constants and dark matter. The major advantage of nuclear transitions as compared to atomic transitions is a smaller sensitivity to frequency shifts caused by electric and magnetic fields perturbations due to several orders of magnitude smaller size of nuclei compared to the size of atoms. Besides\, the Mössbauer effect leads to recoilless absorption for nuclei in a crystal lattice and makes it possible to effectively eliminate thermal-motion broadening. Hence\, laser cooling to low temperatures (~100 nK)\, magnetic traps or optical lattices are not required to observe the super-narrow nuclear resonances (contrary to the case of atomic optical transitions). The nuclei are naturally trapped in a crystal lattice even at room temperature and solid density. The high solid density leads also to an efficient interaction of photons with a dense nuclear ensemble and holds a potential for development of extremely compact devices. While a majority of the long-lived nuclear isomer states belong to the 50 keV-50 MeV range (and hence can’t be resonantly addressed by the existing sources of coherent radiation)\, there are several exceptions. The most prominent and widely studied among them is 229Th\, which has the lowest transition energy about 8 eV. At the same time\, several long-lived nuclear isomers are available with the transition energies below 20 keV which potentially are in the reach of the modern X-ray free-electron lasers. The most promising among them is 45Sc with the transition energy 12.4 keV and the linewidth of 1.4 feV resulting in extremely high nuclear resonance quality factor Q =1019. Besides\, 45Sc is a mono-isotope which is commercially available both as a metallic film and a stoichiometric Sc2O3 crystal\, where its 12.4 keV transition has a high Lamb-Mössbauer factor fLM = 0.8 at room temperature. All these facts make 45Sc far superior to any other candidate for Mössbauer nuclear clock. I’ll review the recent progress in resonant excitation of the long-lived 12.4 keV nuclear transition in 45Sc\, demonstration of nuclear quantum memory\, acoustically-induced transparency and slowing of x-ray photons. \n\n\n\nZOOM information: \n\n\n\nhttps://tamu.zoom.us/j/98156251523?pwd=QVdSdGxtL1UyY0g1L083SU5QR0QrUT09Meeting ID: 981 5625 1523Passcode: 297578 \n\n\n\nOne tap mobile+13462487799\,\,98156251523# US (Houston)+16694449171\,\,98156251523# US
URL:https://iqse.tamu.edu/event/quantum-optics-with-ultra-narrow-nuclear-resonances-and-x-ray-photons/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20221213T113000
DTEND;TZID=America/Chicago:20221213T113000
DTSTAMP:20260430T020925
CREATED:20230906T142738Z
LAST-MODIFIED:20230907T153928Z
UID:430-1670931000-1670931000@iqse.tamu.edu
SUMMARY:LIGO is Quantum Ghost quantum metrology
DESCRIPTION:IQSE AMO QO Seminar Series \n\n\n\nPizza will be served for IQSE members at 11:00 am. The talk will start around 11:30 am \n\n\n\nPresenters: Dr. William G. Unruh and Dr. Luiz Davidovich \n\n\n\nVenue: IQSE SEMINAR ROOM (MPHY 578) \n\n\n\nABOUT THE SPEAKER: William G. Unruh is a professor of physics at the University of British Columbia\, known for his seminal contributions to our understanding of gravity\, black holes\, cosmology\, quantum fields in curved spaces\, and the foundations of quantum mechanics\, including the discovery of the Unruh effect. Professor Unruh was the first Director of the Cosmology and Gravity Program at the Canadian Institute for Advanced Research (1985-1996). His many awards include the Rutherford Medal of the Royal Society of Canada (1982)\, the Herzberg Medal of the Canadian Association of Physicists (1983)\, the Steacie Prize from the National Research Council (1984)\, the Canadian Association of Physicists Medal of Achievement (1995)\, and the Canada Council Killam Prize. Professor Unruh is an elected Fellow of the Royal Society of Canada\, a Fellow of the American Physical Society\, a Fellow of the Royal Society of London\, and a Foreign Honorary Member of the American Academy of Arts and Science. Professor Davidovich is a fellow of the Optical Society of America and the American Physical Society. He is foreign associate of the US National Academy of Sciences\, member of the World Academy of Sciences for the Advancement of Science in the Developing Countries (TWAS) and president of the Brazilian Academy of Sciences. He received the Brazilian Grand-Cross of the National Order of Scientific Merit and the Brazilian National Prize of Science and Technology. \n\n\n\nEVENT DETAILS: Join us in celebrating distinguished IQSE members — the winners of prestigious international awards in 2022: Olga Kocharovskaya\, Girish Agarwal\, Luiz Davidovich\, Edward Fry\, Ping Yang … \n\n\n\nZOOM information: \n\n\n\nhttps://tamu.zoom.us/j/98156251523?pwd=QVdSdGxtL1UyY0g1L083SU5QR0QrUT09Meeting ID: 981 5625 1523Passcode: 297578 \n\n\n\nOne tap mobile+13462487799\,\,98156251523# US (Houston)+16694449171\,\,98156251523# US
URL:https://iqse.tamu.edu/event/ligo-is-quantum-ghost-quantum-metrology/
LOCATION:IQSE Seminar Room (MPHY 578)\, Mitchell Physics Building\, 578 University Dr.\, College Station\, TX\, 77840\, United States
END:VEVENT
END:VCALENDAR