Maximum-entropy theory of steady-state quantum transport

Bokes, P and Godby, R W (2003) Maximum-entropy theory of steady-state quantum transport. Physical review b. -. ISSN 1098-0121

Full text available as:

Preview	Text (godbyrw_0301485v2.pdf) godbyrw_0301485v2.pdf Download (203Kb)
Preview	Text (godby_erratum.pdf) godby_erratum.pdf Download (276Kb)

Abstract

We develop a theoretical framework for describing steady-state quantum transport phenomena, based on the general maximum-entropy principle of nonequilibrium statistical mechanics. The general form of the many-body density matrix is derived, which contains the invariant part of the current operator that guarantees the nonequilibrium and steady-state character of the ensemble. Several examples of the theory are given, demonstrating the relationship of the present treatment to the widely used scattering-state occupation schemes at the level of the self-consistent single-particle approximation. The latter schemes are shown not to maximize the entropy, except in certain limits.

Item Type:	Article
Copyright, Publisher and Additional Information:	© 2003 American Physical Society. This is an author produced version of a paper published in Physical Review B. Uploaded in accordance with the publisher's self archiving policy. NB Erratum: Physical Review B 72 199904(E) (2005) (1 page); http://link.aps.org/abstract/PRB/v72/e199904.
Keywords:	CONDUCTANCE
Academic Units:	The University of York > Physics (York)
Depositing User:	Physics Import
Date Deposited:	29 Aug 2008 14:29
Last Modified:	19 Feb 2013 11:57
Published Version:	http://dx.doi.org/10.1103/PhysRevB.68.125414
Status:	Published
Refereed:	Yes
Related URLs:	http://arxiv.org/abs/cond-mat/0301485 http://link.aps.org/abstract/PRB/v68/e12...
URI:	http://eprints.whiterose.ac.uk/id/eprint/4017

Actions (login required)

View Item