2002/04/01 by Horacio M. Pastawski, H. M. Pastawski, L. E. F. Foa Torres +2 · 2 citations
Chemistry · Materials Science · Physics and Astronomy · #Advanced Physical and Chemical Molecular Interactions #Magnetism in coordination complexes #Organic and Molecular Conductors Research #cond-mat.mes-hall
paper · pdf · doi:10.1016/s0301-0104(02)00565-7
published as Chem. Phys. 281, 257 (2002). · 32 pages, 11 eps figures. To appear in Chemical Physics (Special Molecular Electronics Number)
arxiv created 2002/04/01 · openalex publication_date 2002/08/01 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
We perform a brief but critical review of the Landauer picture of transport that clarifies how decoherence appears in this approach. On this basis, we present different models that allow the study of the coherent and decoherent effects of the interaction with the environment in the electronic transport. These models are particularly well suited for the analysis of transport in molecular wires. The effects of decoherence are described through the D'Amato-Pastawski model that is explained in detail. We also consider the formation of polarons in some models for the electron-vibrational interaction. Our quantum coherent framework allows us to study many-body interference effects. Particular emphasis is given to the occurrence of anti-resonances as a result of these interferences. By studying the phase fluctuations in these soluble models we are able to identify inelastic and decoherence effects. A brief description of a general formulation for the consideration of time-dependent transport is also presented.