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Physics Colloquium, February 8, 2005Conditional Dynamics and Quantum Feedback; an Experiment in Cavity QEDLuis OrozcoUniversity of MarylandQuantum systems that are strongly coupled have fluctuations that are larger than the average value of their steady state. When the fluctuation is a single photon, as is the case in cavity QED, the return to the steady state after the detection of a single photon follows conditional dynamics measurable with quantum optical correlations. The conditional dynamics can be modified, via quantum feedback, based on a single quantum and the knowledge of the conditional state. Our experiments show this capture and release of a quantum state. 3.30 p.m., Smith Laboratory, Room 1005Refreshments served in Smith 1094 at 3:00 p.m. |
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