Dynamical Criterion for Quantum Chaos: Entropy Production in Subsystems

Details Dynamical Criterion for Quantum Chaos: Entropy Production in Subsystems Dynamical Criterion for Quantum Chaos: Entropy Production in Subsystems

2003-02-04

arxiv.org/abs/quant-ph/0302029v2

Physics

Quantum Physics

4 pages, 8 figures

Scientific paper

We examine the conjecture that entropy production in subsystems of a given system can be used as a dynamical criterion for quantum chaos in the latter. Numerical results are presented for finite dimensional spin systems as also for the quantum baker's map. Of especial importance is the power spectrum of the entropy production which gets progressively more and more broad-banded as the degree of correlation in the Hamiltonian matrix is made to decrease.

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