Phys. Rev. B 79, 205303 (2009) [12 pages]Transport in molecular states language: Generalized quantum master equation approachReceived 24 November 2008; revised 16 February 2009; published 6 May 2009 A simple scheme, capable of treating transport in molecular junctions in the language of many-body states, is presented. By introducing an ansatz in Liouville space, similar to the generalized Kadanoff-Baym approximation, a quantum master equation (QME)-like expression is derived starting from the exact equation of motion for Hubbard operators. Using an effective Liouville space propagation, a dressing similar to the standard diagrammatic one is proposed. The scheme is compared to the standard QME approach and its applicability to transport calculations is discussed. © 2009 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevB.79.205303
DOI:
10.1103/PhysRevB.79.205303
PACS:
73.63.Kv, 73.23.Hk, 85.65.+h, 85.35.Be
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