Charge transport through a molecule driven by a high-frequency field
- We study the current and the associated noise for the transport through a two-site molecule driven by an external oscillating field. Within a high-frequency approximation, the time-dependent Hamiltonian is mapped to a static one with effective parameters that depend on the driving amplitude and frequency. This analysis allows an intuitive physical picture explaining the nontrivial structure found in the noise properties as a function of the driving amplitude. The presence of dips in the Fano factor permits a control of the noise level by means of an appropriate external driving.
Author: | Sigmund KohlerORCiDGND, Sébastien Camalet, Michael StrassGND, Jörg LehmannGND, Gert-Ludwig IngoldORCiDGND, Peter HänggiORCiDGND |
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URN: | urn:nbn:de:bvb:384-opus4-2955 |
Frontdoor URL | https://opus.bibliothek.uni-augsburg.de/opus4/361 |
Type: | Preprint |
Language: | English |
Publishing Institution: | Universität Augsburg |
Release Date: | 2006/09/08 |
Tag: | quantum transport; driven systems; noise |
GND-Keyword: | Rauschen; Transportprozess; Hochfrequenz; Molekül; Feld <Physik> |
Source: | erschienen in: Chemical Physics 296, 243–249 (2004); DOI: 10.1016/j.chemphys.2003.09.023; URL: www.elsevier.com/locate/chemphys |
Institutes: | Mathematisch-Naturwissenschaftlich-Technische Fakultät |
Mathematisch-Naturwissenschaftlich-Technische Fakultät / Institut für Physik | |
Mathematisch-Naturwissenschaftlich-Technische Fakultät / Institut für Physik / Lehrstuhl für Theoretische Physik I | |
Dewey Decimal Classification: | 5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik |