0602007v1

related topics
{classical, space, random}
{state, states, coherent}
{time, wave, function}
{energy, gaussian, time}
{phase, path, phys}
{group, space, representation}

Value statistics of chaotic Wigner function

Martin Horvat, Tomaz Prosen

abstract: We study Wigner function value statistics of classically chaotic quantum maps on compact 2D phase space. We show that the Wigner function statistics of a random state is a Gaussian, with the mean value becoming negligible compared to the width in the semi-classical limit. Using numerical example of quantized sawtooth map we demonstrate that the relaxation of time-dependent Wigner function statistics, starting from a coherent initial state, takes place on a logarithmically short log (hbar) time scale.

oai_identifier:
oai:arXiv.org:quant-ph/0602007
categories:
quant-ph nlin.CD
comments:
5 pages, 4 figures (4 .eps files); for the proceedings of the 5th International Summer School/Conference in Maribor 2002: Let's Face Chaos through Nonlinear Dynamics
arxiv_id:
quant-ph/0602007
created:
2006-02-01

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