Bokes, P and Godby, R W (2003) Maximum-entropy theory of steady-state quantum transport. Physical review b. 125414. -. ISSN 1098-0121
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.
|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.|
|Institution:||The University of York|
|Academic Units:||The University of York > Physics (York)|
|Depositing User:||Physics Import|
|Date Deposited:||29 Aug 2008 14:29|
|Last Modified:||26 Mar 2015 07:30|