AMO/QO SEMINAR SERIES
"Towards optical quantum networks with Silicon-vacancy color centers"
Dr. Denis Sukachev
Optical quantum networks may have many applications in secure quantum communication, computation and metrology. Quantum networks require nodes which efficiently interface photons to registers of long-lived
quantum memories which can be controlled with high fidelity. I will present a platform based on a silicon-vacancy-color-center (SiV) coupled to a nearby nuclear spin and embedded in a diamond nanocavity, which
fulfills all of these requirements. The high cooperativity SiV-cavity system (C = 38) provides a deterministic
interface between itinerant photons and the electron spin, with a coherence time exceeding 1 ms. Employing coherent microwave control, we generate high-fidelity spin-photon entanglement and implement heralded
photon storage in the nanophotonic register. Finally, we demonstrate universal control over a cavity-coupled
two-qubit register consisting of a SiV and a proximal 13C spin with coherence time approaching one second.
These results pave the way for preparing of large 2D photonic cluster states and demonstration of first-generation quantum repeaters.
Tuesday, May 7, 2019
IQSE Seminar Room, 12:00 Noon
Institute for Quantum Science and Engineering
Texas A&M University
Deli lunch to be served at 11:30 a.m.
Host: Dr. Marlan Scully
THE INSTITUTE FOR QUANTUM
SCIENCE AND ENGINEERING