Nearest-neighbor distribution for singular billiards

Details Nearest-neighbor distribution for singular billiards Nearest-neighbor distribution for singular billiards

2001-12-18

arxiv.org/abs/nlin/0112028v1

Nonlinear Sciences

Chaotic Dynamics

38 pages, 10 figures

Scientific paper

10.1103/PhysRevE.65.056214

The exact computation of the nearest-neighbor spacing distribution P(s) is performed for a rectangular billiard with point-like scatterer inside for periodic and Dirichlet boundary conditions and it is demonstrated that for large s this function decreases exponentially. Together with the results of [Bogomolny et al., Phys. Rev. E 63, 036206 (2001)] it proves that spectral statistics of such systems is of intermediate type characterized by level repulsion at small distances and exponential fall-off of the nearest-neighbor distribution at large distances. The calculation of the n-th nearest-neighbor spacing distribution and its asymptotics is performed as well for any boundary conditions.

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