Integrability and ideal conductance at finite temperatures
Condensed Matter
2009-10-22 v2
Abstract
We analyse the finite temperature charge stiffness D(T>0), by a generalization of Kohn's method, for the problem of a particle interacting with a fermionic bath in one dimension. We present analytical evidence, using the Bethe ansatz method, that D(T>0) is finite in the integrable case where the mass of the particle equals the mass of the fermions and numerical evidence that it vanishes in the nonintegrable one of unequal masses. We conjecture that a finite D(T>0) is a generic property of integrable systems.
Keywords
Cite
@article{arxiv.cond-mat/9411005,
title = {Integrability and ideal conductance at finite temperatures},
author = {H. Castella and X. Zotos and P. Prelovsek},
journal= {arXiv preprint arXiv:cond-mat/9411005},
year = {2009}
}
Comments
revtex file; 3 postscript figure files replaced with uuencoded ones