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"Quantum optics with semiconductor
quantum dots

Weng Chow
Sandia National Labs


There is recent interest in strong light-matter interaction in semiconductors and its uses in optoelectronics. Exploring these possibilities requires extending the Jaynes-Cummings model to include many-body effects. The reason is that the matter, even for a single quantum dot (QD), consists of multiple interacting charged particles.

I will show why the customary cluster expansion has a difficult time doing the job because of slow convergence. Then, I will describe an alternate approach that allows numerical integration of coupled electron-photonphonon equations of motion to arbitrary accuracy. If time allows, I will describe an example of recent experimental progress, involving Rabi oscillations in Sandia’s electrically (incoherently) excited mid-IR emitters.

Wednesday, July 6, 2011
IQSE 578, 4:00 p.m.
Mitchell Physics Building

Texas A&M University, Institute for Quantum Science & Engineering