Fidelity and level correlations in the transition from regularity to chaos

Details Fidelity and level correlations in the transition from regularity to chaos Fidelity and level correlations in the transition from regularity to chaos

2012-04-08

arxiv.org/abs/1204.1747v1

EPL, 98 (2012) 10005

Physics

Quantum Physics

7 pages, 1 figure

Scientific paper

10.1209/0295-5075/98/10005

Mean fidelity amplitude and parametric energy--energy correlations are calculated exactly for a regular system, which is subject to a chaotic random perturbation. It turns out that in this particular case under the average both quantities are identical. The result is compared with the susceptibility of chaotic systems against random perturbations. Regular systems are more susceptible against random perturbations than chaotic ones.

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