A Green-function approach to transport phenomena in quantum pumps

Details A Green-function approach to transport phenomena in quantum pumps A Green-function approach to transport phenomena in quantum pumps

2005-05-06

arxiv.org/abs/cond-mat/0505153v2

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

To appear in PRB

Scientific paper

10.1103/PhysRevB.72.125349

We present a general treatment to study transport phenomena in systems described by tight-binding Hamiltonians coupled to reservoirs and with one or more time-periodic potentials. We apply this treatment to the study of transport phenomena in a double barrier structure with one and two harmonic potentials. Among other properties, we discuss the origin of the sign of the net current.

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