Coherent backscattering from a quantum dot is insensitive to the Ehrenfest time
Abstract
This paper was withdrawn by the authors. The purpose of this paper was to provide conclusive evidence for the Ehrenfest-time-independence of weak localization, by means of a computer simulation of the coherent backscattering peak on very large systems. (Two orders of magnitude larger than we could reach in cond-mat/0405122 by studying weak localization directly.) We have decided to withdraw this paper, after Piet Brouwer convinced us that the one-to-one correspondence between weak localization and coherent backscattering can not be relied upon. For example, a reflection matrix with one half of its eigenvalues equal to 0 and the other half equal to 1 (hence without weak localization) would still show a coherent backscattering peak in a basis that is randomly related to its eigenbasis.
Cite
@article{arxiv.cond-mat/0406271,
title = {Coherent backscattering from a quantum dot is insensitive to the Ehrenfest time},
author = {A. Tajic and J. Tworzydlo and C. W. J. Beenakker},
journal= {arXiv preprint arXiv:cond-mat/0406271},
year = {2007}
}
Comments
This paper has been withdrawn