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arXiv · 0905.4646

Long-time fidelity and chaos for a kicked nonlinear oscillator system

A. Kowalewska-Kudłaszyk·J. K. Kalaga·W. Leoński
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Abstract

We deal with a system comprising a nonlinear (Kerr-like) oscillator excited by a series of ultra-short external pulses. We introduce the fidelity-based entropic parameter that can be used as an indicator of quantum chaos. Moreover, we propose to use the fidelity-like parameter comprising the information about the mean number of photons in the system. We shall concentrate on the long-time behaviour of the parameters discussed, showing that for deep chaos cases the quantum fidelities behave chaotically in the classical sense despite their strictly quantum character.

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BibTeXRIS

A. Kowalewska-Kudłaszyk, J. K. Kalaga, W. Leoński. 2009-05-29. Long-time fidelity and chaos for a kicked nonlinear oscillator system. https://doi.org/10.1016/j.physleta.2009.02.022

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