Continuous quantum measurement of a light-matter system
Ran Zhao, S. D. Jenkins, C. J. Campbell, Dzmitry Matsukevich, T. Chanelière, T. A. B. Kennedy, A. Kuzmich · Physical Review A · 2010
Continuous measurements on correlated quantum systems, in addition to providing information on the state vector of the system in question, induce evolution in the unmeasured degrees of freedom conditioned on the measurement outcome. However, experimentally accessing these nontrivial regimes requires high-efficiency measurements over time scales much longer than the temporal resolution of the measurement apparatus. We report the observation of such a continuous conditioned evolution in the state of a light-collective atomic excitation system undergoing photoelectric measurement.