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作者:

Yang, Kai-Hua (Yang, Kai-Hua.) | He, Xian (He, Xian.) | Wang, Huai-Yu (Wang, Huai-Yu.) | Liu, Kai-Di (Liu, Kai-Di.) | Liu, Bei-Yun (Liu, Bei-Yun.)

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摘要:

We study the shot noise of a strongly correlated quantum dot weakly coupled to Luttinger liquid leads in the Kondo regime by means of the extended equation of motion method. A general zero-frequency shot noise formula with good convergence is derived. The shot noise exhibits a non-monotonic dependence on voltage for weak intralead interaction. There is a peak around the Kondo temperature at low voltage when the interaction is very weak, and its height decreases rapidly with the intralead interaction increasing. When the interaction is moderately strong the peak disappears and the shot noise scales as a power law in bias voltage, indicating that the intralead electron interaction suppresses the shot noise. It is possible that the measurements of the shot noise spectrum can extract the information of the intralead interaction. (C) 2014 Elsevier B.V. All rights reserved.

关键词:

Luttinger liquid Shot noise Kondo effect

作者机构:

  • [ 1 ] [Yang, Kai-Hua]Beijing Univ Technol, Coll Appl Sci, Beijing 100122, Peoples R China
  • [ 2 ] [He, Xian]Beijing Univ Technol, Coll Appl Sci, Beijing 100122, Peoples R China
  • [ 3 ] [Liu, Kai-Di]Beijing Univ Technol, Coll Appl Sci, Beijing 100122, Peoples R China
  • [ 4 ] [Liu, Bei-Yun]Beijing Univ Technol, Coll Appl Sci, Beijing 100122, Peoples R China
  • [ 5 ] [Wang, Huai-Yu]Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China

通讯作者信息:

  • [Yang, Kai-Hua]Beijing Univ Technol, Coll Appl Sci, Beijing 100122, Peoples R China

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来源 :

PHYSICS LETTERS A

ISSN: 0375-9601

年份: 2014

期: 42

卷: 378

页码: 3136-3143

2 . 6 0 0

JCR@2022

ESI学科: PHYSICS;

ESI高被引阀值:202

JCR分区:2

中科院分区:3

被引次数:

WoS核心集被引频次: 4

SCOPUS被引频次: 4

ESI高被引论文在榜: 0 展开所有

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