From quantum trajectories to classical orbits

Details From quantum trajectories to classical orbits From quantum trajectories to classical orbits

1996-08-26

arxiv.org/abs/quant-ph/9608038v1

Physics

Quantum Physics

7 pages RevTeX 3.0 + 2 figures (postscript). Submitted to Physical Review Letters

Scientific paper

10.1016/S0375-9601(97)00217-X

Recently it has been shown that the evolution of open quantum systems may be ``unraveled'' into individual ``trajectories,'' providing powerful numerical and conceptual tools. In this letter we use quantum trajectories to study mesoscopic systems and their classical limit. We show that in this limit, Quantum Jump (QJ) trajectories approach a diffusive limit very similar to the Quantum State Diffusion (QSD) unraveling. The latter follows classical trajectories in the classical limit. Hence, both unravelings show the rise of classical orbits. This is true for both regular and chaotic systems (which exhibit strange attractors).

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