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Published November 23, 1998 | public
Journal Article Open

Retroactive Quantum Jumps in a Strongly Coupled Atom-Field System


We investigate a novel type of conditional dynamic that occurs in the strongly driven Jaynes-Cummings system with dissipation. Extending the work of Alsing and Carmichael [Quantum Opt. 3, 13 (1991)], we present a combined numerical and analytic study of the stochastic master equation that describes the system's conditional evolution when the cavity output is continuously observed via homodyne detection, but atomic spontaneous emission is not monitored at all. We find that quantum jumps of the atomic state are induced by its dynamical coupling to the optical field, in order retroactively to justify atypical fluctuations occurring in the homodyne photocurrent.

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©1998 The American Physical Society Received 6 July 1998 H. M. acknowledges the Advanced Computing Laboratory of LANL. H.M.W. was supported by the Australian Research Council. H. Mabuchi and H. M. Wiseman, Erratum: Retroactive Quantum Jumps in a Strongly Coupled Atom-Field System [Phys. Rev. Lett. 81, 4620 (1998)], Phys. Rev. Lett. 82, 1798 (1999).


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