Berry-Robnik level statistics in a smooth billiard system

Abstract

Berry-Robnik level spacing distribution is demonstrated clearly in a generic quantized plane billiard for the first time. However, this ultimate semi-classical distribution is found to be valid only for extremely small semi-classical parameter (effective Planck's constant) where the assumption of statistical independence of regular and irregular levels is achieved. For sufficiently larger semiclassical parameter we find (fractional power-law) level repulsion with phenomenological Brody distribution providing an adequate global fit.

10 pages in LaTeX with 4 eps figures included

References in corpus (2)

• New Universal Aspects of Diffusion in Strongly Chaotic Systems
• Comment on Energy Level Statistics in the Mixed Regime

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