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Non-universality of chaotic classical dynamics: implications for quantum chaos

Wilkinson, M. (2001). Non-universality of chaotic classical dynamics: implications for quantum chaos. Physica Scripta, 2001(T90) pp. 75–79.

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It might be anticipated that there is statistical universality in the long-time classical dynamics of chaotic systems, corresponding to the universal agreement between their quantum spectral statistics and random matrix theory. It is argued that no such universality exists. Two statistical properties of long period orbits are considered. The distribution of the phase-space density of periodic orbits of fixed length is shown to have a log-normal distribution. Also, a correlation function of periodic-orbit actions is discussed, which has a semiclassical correspondence to the quantum spectral two-point correlation function. It is shown that bifurcations are a mechanism for creating correlations of periodic-orbit actions. They lead to a result which is non-universal, and which in general may not be an analytic function of the action difference.

Item Type: Journal Article
Copyright Holders: 2001 Physica Scripta
ISSN: 1402-4896
Academic Unit/Department: Mathematics, Computing and Technology > Mathematics and Statistics
Mathematics, Computing and Technology
Item ID: 25377
Depositing User: Michael Wilkinson
Date Deposited: 07 Apr 2011 15:26
Last Modified: 15 Jan 2016 15:25
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