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Abstract:
In the present paper, by applying the Lang-Firsov canonical transformation and the so-called noncrossing-approximation technique, we investigate the effect of the electron-phonon interaction on the transport of a quantum dot (QD) system in the Kondo regime. The numerical results show that the zero-frequency shot noise and Fano factor are always enhanced significantly due to the electron-phonon interaction. The well-known peak structure around the Kondo temperature in the S-V curve exhibits a probe of the electron-phonon coupling strength.. In addition, the enhancement of the Fano factor due to the electron-phonon interaction is attributed to the reduction of the Kondo-enhanced density-of-state and transmission probability in a quantum dot. The results may be informative for future experimental measurements. Copyright (C) EPLA, 2010
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EPL
ISSN: 0295-5075
Year: 2010
Issue: 3
Volume: 89
1 . 8 0 0
JCR@2022
ESI Discipline: PHYSICS;
JCR Journal Grade:1
Cited Count:
WoS CC Cited Count: 12
SCOPUS Cited Count: 14
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count:
Chinese Cited Count:
30 Days PV: 7
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