Open AccessSPECTRAL DENSITY FOR THE TUNNELING CURRENT ZERO-FREQUENCY SHOT-NOISE IN A ONE-DIMENTIONAL MESOSCOPIC SYSTEM
Author(s) -
Zheng Xin Zhu,
D. F. Zheng,
Y. Y. Liu
Publication year - 1999
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.48.302
Subject(s) - mesoscopic physics , shot noise , physics , noise (video) , spectral density , non equilibrium thermodynamics , zero (linguistics) , quantum tunnelling , current (fluid) , infrasound , current density , noise spectrum , condensed matter physics , spectral line , computational physics , quantum mechanics , optics , acoustics , detector , telecommunications , computer science , linguistics , philosophy , noise reduction , artificial intelligence , image (mathematics) , thermodynamics
We have derived the expression of the spectral density for the current shot-noise in terms of the nonequilibrium Green's functions(closed-path Green's functions) for a one-dimentional mesoscopic junction, and performed numerical calculations to discuss the dependence of the zero frequency spectral density for the currentshot-noise on other variables when the tunnling junction is pure or impure.