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作者:

Yang, Kai-Hua (Yang, Kai-Hua.) | Wu, Yu-Peng (Wu, Yu-Peng.) | Zhao, Ya-Liang (Zhao, Ya-Liang.)

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Scopus SCIE

摘要:

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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作者机构:

  • [ 1 ] [Yang, Kai-Hua]Beijing Univ Technol, Coll Appl Sci, Beijing 100124, Peoples R China
  • [ 2 ] [Wu, Yu-Peng]Beijing Univ Technol, Coll Appl Sci, Beijing 100124, Peoples R China
  • [ 3 ] [Zhao, Ya-Liang]Beijing Univ Technol, Coll Appl Sci, Beijing 100124, Peoples R China

通讯作者信息:

  • [Yang, Kai-Hua]Beijing Univ Technol, Coll Appl Sci, Beijing 100124, Peoples R China

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来源 :

EPL

ISSN: 0295-5075

年份: 2010

期: 3

卷: 89

1 . 8 0 0

JCR@2022

ESI学科: PHYSICS;

JCR分区:1

被引次数:

WoS核心集被引频次: 12

SCOPUS被引频次: 14

ESI高被引论文在榜: 0 展开所有

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中文被引频次:

近30日浏览量: 1

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