Randomly incomplete spectra and intermediate statistics.
By randomly removing a fraction of levels from a given spectrum a model is constructed that describes a crossover from this spectrum to a Poisson spectrum. The formalism is applied to the transitions towards Poisson from random matrix theory (RMT) spectra and picket fence spectra. It is shown that the Fredholm determinant formalism of RMT extends naturally to describe incomplete RMT spectra.
Bohigas
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CNRS, Université Paris-Sud, UMR8626, LPTMS, Orsay Cedex, F-91405, France.
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