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Shot noise in non-adiabatically driven nanoscale conductors

✍ Scribed by F.J. Kaiser; S. Kohler

Publisher
John Wiley and Sons
Year
2007
Tongue
English
Weight
274 KB
Volume
16
Category
Article
ISSN
0003-3804

No coin nor oath required. For personal study only.

✦ Synopsis

This article is dedicated to Hermann Grabert on the occasion of his 60th birthday.

We investigate the noise properties of pump currents through molecular wires and coupled quantum dots. As a model we employ a two-level system that is connected to electron reservoirs and is non-adiabatically driven. Concerning the electron-electron interaction, we focus on two limits: non-interacting electrons and strong Coulomb repulsion. While the former case is treated within a Floquet scattering formalism, we derive for the latter case a master equation formalism for the computation of the current and the zero-frequency noise. For a pump operated close to internal resonances, the differences between the non-interacting and the strongly interacting limit turn out to be surprisingly small.

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