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Phase Space Caustics in Multicomponent Systems Export

by: Atushi Tanaka
Physical Review Letters, Vol. 80, No. 7. (16 February 1998), 1414.

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chaos entanglement quantum

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eprint: http://arxiv.org/abs/quant-ph/9801026

atanaka (public note) - 2009-06-16 07:43:55

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As examples of quantum-“classical” coupling systems; multicomponent systems are studied by semiclassical evaluations of the Feynman kernels in the coherent-state representation. From the observation of the phase space caustics; due to the presence of the internal degree of freedom (IDF); two phenomena are explained in terms of the semiclassical theory: (1) The quantum oscillations of the IDF induce quantum interference patterns in the Hushimi representation and (2) chaotic dynamics destroys the coherence of the quantum oscillations.


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