Transport in molecular states language: Generalized quantum master equation approach

Details Transport in molecular states language: Generalized quantum master equation approach Transport in molecular states language: Generalized quantum master equation approach

2008-11-25

arxiv.org/abs/0811.4014v1

Phys. Rev. B 79, 205303 (2009)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

10 pages, 3 figures

Scientific paper

10.1103/PhysRevB.79.205303

A simple scheme capable of treating transport in molecular junctions in the language of many-body states is presented. An ansatz in Liouville space similar to generalized Kadanoff-Baym approximation is introduced in order to reduce exact equation-of-motion for Hubbard operator to quantum master equation (QME)-like expression. A dressing with effective Liouville space propagation similar to standard diagrammatic dressing approach is proposed. The scheme is compared to standard QME approach, and its applicability to transport calculations is discussed within numerical examples.

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