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Decay of correlations and invariance principles for dispersing billiards with cusps, and related planar billiard flows
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Bálint, Péter and Melbourne, Ian (2008) Decay of correlations and invariance principles for dispersing billiards with cusps, and related planar billiard flows. Journal of Statistical Physics, Vol.133 (No.3). pp. 435-447. doi:10.1007/s10955-008-9623-y ISSN 0022-4715.
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Official URL: http://dx.doi.org/10.1007/s10955-008-9623-y
Abstract
Following recent work of Chernov, Markarian, and Zhang, it is known that the billiard map for dispersing billiards with zero angle cusps has slow decay of correlations with rate 1/n. Since the collisions inside a cusp occur in quick succession, it is reasonable to expect a much faster decay rate in continuous time. In this paper we prove that the flow is rapid mixing: correlations decay faster than any polynomial rate. A consequence is that the flow admits strong statistical properties such as the almost sure invariance principle, even though the billiard map does not.
The techniques in this paper yield new results for other standard examples in planar billiards, including Bunimovich flowers and stadia.
Item Type: | Journal Article | ||||
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Divisions: | Faculty of Science, Engineering and Medicine > Science > Mathematics | ||||
Journal or Publication Title: | Journal of Statistical Physics | ||||
Publisher: | Springer New York LLC | ||||
ISSN: | 0022-4715 | ||||
Official Date: | 2008 | ||||
Dates: |
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Volume: | Vol.133 | ||||
Number: | No.3 | ||||
Page Range: | pp. 435-447 | ||||
DOI: | 10.1007/s10955-008-9623-y | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Access rights to Published version: | Restricted or Subscription Access |
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