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`Tight Binding' methods in quantum transport through molecules and small devices: From the coherent to the decoherent description

Horacio M. Pastawski·Ernesto Medina
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Abstract

We discuss the steady-state electronic transport in solid-state and molecular devices in the quantum regime. The decimation technique allows a comprehensive description of the electronic structure. Such a method is used, in conjunction with the generalizations of Landauer's tunneling formalism, to describe a wide range of transport regimes. We analize mesoscopic and semiclassical metallic transport, the metal-insulator transition, and the resonant tunneling regime. The effects of decoherence on transport is discussed in terms of the D'Amato-Pastawski model. A brief presentation of the time dependent phenomena is also included.

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Horacio M. Pastawski, Ernesto Medina. 2001-03-09. `Tight Binding' methods in quantum transport through molecules and small devices: From the coherent to the decoherent description. https://arxiv.org/abs/cond-mat/0103219

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