Brownian-motion model for parametric correlations in the spectra of disordered metals

C. W. J. Beenakker
Phys. Rev. Lett. 70, 4126 – Published 28 June 1993
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Abstract

We study the response to an external perturbation of the energy levels of a disordered metallic particle, by means of the Brownian-motion model introduced by Dyson in the theory of random matrices, and reproduce the results of a recent microscopic [A. Szafer and B. L. Altshuler, Phys. Rev. Lett. 70, 587 (1993)]. This establishes the validity of Dyson’s basic assumption, that parametric correlations in the energy spectrum are dominated by ‘‘level repulsion,’’ and therefore soley dependent on the symmetry of the Hamiltonian.

  • Received 11 March 1993

DOI:https://doi.org/10.1103/PhysRevLett.70.4126

©1993 American Physical Society

Authors & Affiliations

C. W. J. Beenakker

  • Instituut-Lorentz, University of Leiden, P.O. Box 9506, 2300 RA Leiden, The Netherlands

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Vol. 70, Iss. 26 — 28 June 1993

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