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nlin.CD2003
A random matrix formulation of fidelity decay
T. Gorin, T. Prosen, T. H. Seligman
We propose to study echo dynamics in a random matrix framework, where we assume that the perturbation is time independent, random and orthogonally invariant. This allows to use a b…
nlin.CD2003
Low rank perturbations and the spectral statistics of pseudointegrable billiards
Thomas Gorin, Jan Wiersig
We present an efficient method to solve Schrödinger's equation for perturbations of low rank. In particular, the method allows to calculate the level counting function with very li…