| Issue |
Europhys. Lett.
Volume 69, Number 3, February 2005
|
|
|---|---|---|
| Page(s) | 475 - 481 | |
| Section | Interdisciplinary physics and related areas of science and technology | |
| DOI | https://doi.org/10.1209/epl/i2004-10351-x | |
| Published online | 24 December 2004 | |
Full counting statistics of nano-electromechanical systems
1
MIC, Department of Micro and Nanotechnology, Technical University of Denmark DTU, Building 345east - DK-2800 Kongens Lyngby, Denmark
2
Department of Electronic Structures, Faculty of Mathematics and Physics Charles University - Ke Karlovu 5, 121 16 Prague, Czech Republic
Corresponding author: cf@mic.dtu.dk
Received:
14
October
2004
Accepted:
18
November
2004
We develop a theory for the full counting statistics (FCS) for a
class of nanoelectromechanical systems (NEMS), describable by a
Markovian generalized master equation. The theory is applied to
two specific examples of current interest: vibrating
-molecules and quantum shuttles. We report a
numerical evaluation of the first three cumulants for the
setup; for the quantum shuttle we use the third
cumulant to substantiate that the giant enhancement in noise
observed at the shuttling transition is due to a slow switching
between two competing conduction channels. Especially the last
example illustrates the power of the FCS.
PACS: 85.85.+j – Micro- and nano-electromechanical systems (MEMS/NEMS) and devices / 72.70.+m – Noise processes and phenomena / 73.23.Hk – Coulomb blockade; single-electron tunneling
© EDP Sciences, 2005
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