Superstatistical random-matrix-theory approach to transition intensities in mixed systems
arXiv:cond-mat/0603487 · doi:10.1103/PhysRevE.73.056119
Abstract
We study the fluctuation properties of transition intensities applying a recently proposed generalization of the random matrix theory, which is based on Beck and Cohen's superstatistics. We obtain an analytic expression for the distribution of the reduced transition probabilities that applies to systems undergoing a transition out of chaos. The obtained distribution fits the results of a previous nuclear shell model calculations for some electromagnetic transitions that deviate from the Porter-Thomas distribution. It agrees with the experimental reduced transition probabilities for the 26A nucleus better than the commonly used chi-squared distribution.
14 pages, 3 figures
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Cited by in corpus (5)
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- Lifetime distributions in the methods of non-equilibrium statistical operator and superstatistics
- Generalization of the Beck-Cohen superstatistics
- First passage time for superstatistical Fokker-Planck models
- Distribution of local density of states in superstatistical random matrix theory