Maximum-entropy theory of steady-state quantum transport

Details Maximum-entropy theory of steady-state quantum transport Maximum-entropy theory of steady-state quantum transport

2003-01-24

arxiv.org/abs/cond-mat/0301485v3

Phys. Rev. B 68, 125414 (2003).

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

Scientific paper

10.1103/PhysRevB.68.125414

We develop a new theoretical framework for describing steady-state quantum transport phenomena, based on the general maximum-entropy principle of non-equilibrium 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 non-equilibrium 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-states occupation schemes at the level of the self-consistent single-particle approximation.

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