An effective theory for conductance by symmetry breaking
Strongly Correlated Electrons
2007-05-23 v2 Disordered Systems and Neural Networks
High Energy Physics - Theory
Abstract
An effective theory is suggested for the particle-anti particle and the particle-particle modes of strongly disordered electron systems. The effective theory is studied in the framework of the saddle point expansion and found to support a vacuum which is not invariant under translations in imaginary time. The Goldstone bosons of this symmetry breaking generate a pole in the density-density correlation function. The condensate of the auxiliary field corresponding to the particle-particle channel produces conductivity without relying on the long range fluctuations. The results are obtained for .
Keywords
Cite
@article{arxiv.cond-mat/0001053,
title = {An effective theory for conductance by symmetry breaking},
author = {Sebastiao Correia and Janos Polonyi and Jean Richert},
journal= {arXiv preprint arXiv:cond-mat/0001053},
year = {2007}
}
Comments
18 pages, more explanation added