Skip to main content
Article thumbnail
Location of Repository

Staggered repulsion of transmission eigenvalues in symmetric open mesoscopic systems.

By Marten Kopp, Henning Schomerus and Stefan Rotter

Abstract

Quantum systems with discrete symmetries can usually be desymmetrized, but this strategy fails when considering transport in open systems with a symmetry that maps different openings onto each other. We investigate the joint probability density of transmission eigenvalues for such systems in random-matrix theory. In the orthogonal symmetry class we show that the eigenvalue statistics manifests level repulsion only between every second transmission eigenvalue. This finds its natural statistical interpretation as a staggered superposition of two eigenvalue sequences. For a large number of channels, the statistics for a system with a lead-transposing symmetry approaches that of a superposition of two uncorrelated sets of eigenvalues as in systems with a lead-preserving symmetry (which can be desymmetrized). These predictions are confirmed by numerical computations of the transmission-eigenvalue spacing distribution for quantum billiards and for the open kicked rotator

Year: 2008
OAI identifier: oai:eprints.lancs.ac.uk:19750
Provided by: Lancaster E-Prints

Suggested articles


To submit an update or takedown request for this paper, please submit an Update/Correction/Removal Request.