Decoherence of the Kondo Singlet Caused by Fano Resonance

Decoherence of the Kondo Singlet Caused by Fano Resonance

Year:    2014

Author:    Ming-Lun Chen, Zhi-Quan Chen

Journal of Atomic and Molecular Sciences, Vol. 5 (2014), Iss. 2 : pp. 156–162

Abstract

We investigate the structure of an Aharonov-Bohm interferometer with a quantum dot coupling to left and right electrodes. By employing cluster expansions, the equations of motion of Green's functions are transformed into the corresponding equation of motion of connected Green's functions, which provides a truncation scheme. With this method under the Lacroix's truncation approximation, we show that Fano resonance causes a decoherence of the Kondo singlet.

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Journal Article Details

Publisher Name:    Global Science Press

Language:    English

DOI:    https://doi.org/10.4208/jams.100913.122713a

Journal of Atomic and Molecular Sciences, Vol. 5 (2014), Iss. 2 : pp. 156–162

Published online:    2014-01

AMS Subject Headings:    Global Science Press

Copyright:    COPYRIGHT: © Global Science Press

Pages:    7

Keywords:    cluster expansions Kondo singlet Fano resonance Lacroix's truncation approximation.

Author Details

Ming-Lun Chen

Zhi-Quan Chen