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Decoherence and current fluctuations in tunneling through coupled quantum dots

Kiesslich, G; Samuelsson, Peter LU ; Wacker, Andreas LU and Schöll, E (2005) In [Host publication title missing] 780. p.439-441
Abstract
The electronic transport through two coupled quantum dots in series can be described either in a fully coherent approach (e.g. density matrix description or nonequilibrium Green's functions) or in a simple sequential tunneling treatment (Pauli master equation with Fermi's Golden rule for coupling between the quantum dots). It turns out that both descriptions provide the same average current for noninteracting electrons. In contrast, the zero-frequency spectral power density and the skewness are different for intermediate coupling strengths between the quantum dots reflecting their sensitivity on coherence in the tunneling process.
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
in
[Host publication title missing]
volume
780
pages
439 - 441
publisher
American Institute of Physics
external identifiers
  • scopus:33749499261
ISSN
0094-243X
1551-7616
DOI
10.1063/1.2036787
language
English
LU publication?
yes
id
16af7fc0-7aa3-4d24-bf67-ec04f3b28913 (old id 765549)
date added to LUP
2007-12-17 18:23:39
date last changed
2017-01-01 05:16:44
@inproceedings{16af7fc0-7aa3-4d24-bf67-ec04f3b28913,
  abstract     = {The electronic transport through two coupled quantum dots in series can be described either in a fully coherent approach (e.g. density matrix description or nonequilibrium Green's functions) or in a simple sequential tunneling treatment (Pauli master equation with Fermi's Golden rule for coupling between the quantum dots). It turns out that both descriptions provide the same average current for noninteracting electrons. In contrast, the zero-frequency spectral power density and the skewness are different for intermediate coupling strengths between the quantum dots reflecting their sensitivity on coherence in the tunneling process.},
  author       = {Kiesslich, G and Samuelsson, Peter and Wacker, Andreas and Schöll, E},
  booktitle    = {[Host publication title missing]},
  issn         = {0094-243X},
  language     = {eng},
  pages        = {439--441},
  publisher    = {American Institute of Physics},
  title        = {Decoherence and current fluctuations in tunneling through coupled quantum dots},
  url          = {http://dx.doi.org/10.1063/1.2036787},
  volume       = {780},
  year         = {2005},
}