E E C S  MIT Electrical Engineering and Computer Science

EECS Event

Quantum measurement and real-time feedback

Prof. Hideo Mabuchi
Assitant Professor of Physics, California Institute of Technology

Tuesday, November 28, 2000
4:00 PM (reception following)
Room 35-225
LIDS Colloquium

Abstract

Recent experiments in optical cavity quantum electrodynamics (QED) have demonstrated techniques for monitoring the dynamical evolution of individual quantum systems in real time, with quantum-limited accuracy. In this talk I will describe the physical basis for continuous quantum measurement in cavity QED, then discuss its use in our ongoing attempts to implement real-time feedback control of the motion and dressed-state dynamics of individual atoms. I will conclude by discussing the prospects for using continuous measurement to "induce" and to observe nonlinear-dynamical phenomena such as limit cycles, bifurcations, and chaotic oscillations in individual quantum systems.


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