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Author:

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

Indexed by:

EI Scopus SCIE

Abstract:

We study the nonequilibrium transport through a single-level quantum dot weakly coupled to Luttinger liquid leads. A general shot noise expression is derived by using nonequilibrium Green function technique. We find that the differential shot noise and differential conductance demonstrate resonant-like behavior as a function of the bias voltage and the quantum dot's energy level for a weak or moderately strong interaction. In the limit of strong electron-electron interaction, the resonant behavior disappears and shows bias-voltage-dependent power law scalings. And the Fano factor also scales as a power law in high bias voltage region. In addition, the Fano factor is enhanced with the electron-electron interaction increased. It implies that the Fano factor can be controlled by tuning the electron-electron interaction in the leads. (C) 2009 Elsevier B.V. All rights reserved.

Keyword:

Quantum dot Luttinger liquid Shot noise Nonequilibrium Keldysh Green function

Author Community:

  • [ 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

Reprint Author's Address:

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

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Source :

PHYSICS LETTERS A

ISSN: 0375-9601

Year: 2010

Issue: 7

Volume: 374

Page: 917-922

2 . 6 0 0

JCR@2022

ESI Discipline: PHYSICS;

JCR Journal Grade:2

CAS Journal Grade:3

Cited Count:

WoS CC Cited Count: 6

SCOPUS Cited Count: 7

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 4

Affiliated Colleges:

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