Parametric S-matrix fluctuations in quantum theory of chaotic scattering
Condensed Matter
2009-10-22 v1
Abstract
We study the effects of an arbitrary external perturbation in the statistical properties of the S-matrix of quantum chaotic scattering systems in the limit of isolated resonances. We derive, using supersymmetry, an exact non-perturbative expression for the parameter dependent autocorrelator of two S-matrix elements. Universality is obtained by appropriate rescaling of the physical parameters. We propose this universal function as a new signature of quantum chaos in open systems.
Cite
@article{arxiv.cond-mat/9404039,
title = {Parametric S-matrix fluctuations in quantum theory of chaotic scattering},
author = {A. M. S. Macedo},
journal= {arXiv preprint arXiv:cond-mat/9404039},
year = {2009}
}
Comments
4 pages, 1 figure appended, written in REVTeX, Preprint OUTP-94-13S (University of Oxford)