Schmidt, T. L. and Komnik, A.. (2009) Charge transfer statistics of a molecular quantum dot with a vibrational degree of freedom. Physical Review B, Vol. 80, H. 4 , 041307, 4 S..
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Official URL: http://edoc.unibas.ch/dok/A5262035
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Abstract
We analyze the full counting statistics of a single-site quantum dot coupled to a local Holstein phonon for arbitrary transmission and weak electron-phonon coupling. We identify explicitly the contributions due to quasielastic and inelastic transport processes in the cumulant generating function and discuss their influence on the transport properties of the dot. We find that in the low-energy sector, i.e., for bias voltage and phonon frequency much smaller than the dot-electrode contact transparency, the inelastic term causes a sign change in the shot noise correction at certain universal values of the transmission. Furthermore, we show that when the correction to the current due to inelastic processes vanishes, all the odd order cumulants vanish as well.
Faculties and Departments: | 05 Faculty of Science > Departement Physik > Physik > Theoretische Physik (Bruder) |
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UniBasel Contributors: | Schmidt, Thomas L. |
Item Type: | Article, refereed |
Article Subtype: | Research Article |
Publisher: | American Institute of Physics |
ISSN: | 0163-1829 |
Note: | Publication type according to Uni Basel Research Database: Journal article |
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Identification Number: | |
Last Modified: | 22 Mar 2012 14:25 |
Deposited On: | 22 Mar 2012 13:49 |
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