| Current control in a tilted washboard potential via time-delayed feedback. | |
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MedLine Citation:
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PMID: 19518180 Owner: NLM Status: PubMed-not-MEDLINE |
Abstract/OtherAbstract:
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We consider the motion of an overdamped Brownian particle in a washboard potential exerted to a static tilting force. The bias yields directed net particle motion, i.e., a current. It is demonstrated that with an additional time-delayed feedback term, the particle current can be reversed against the direction of the bias. The control function induces a ratchetlike effect that hinders further current reversals and thus the particle moves against the direction of the static bias. Furthermore, varying the delay time allows also to continuously depreciate and even stop the transport in the washboard potential. We identify and characterize the underlying mechanism which applies to the current control in a wide temperature range. |
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Authors:
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D Hennig |
Publication Detail:
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Type: Journal Article Date: 2009-04-08 |
Journal Detail:
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Title: Physical review. E, Statistical, nonlinear, and soft matter physics Volume: 79 ISSN: 1539-3755 ISO Abbreviation: Phys Rev E Stat Nonlin Soft Matter Phys Publication Date: 2009 Apr |
Date Detail:
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Created Date: 2009-06-12 Completed Date: 2009-07-16 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101136452 Medline TA: Phys Rev E Stat Nonlin Soft Matter Phys Country: United States |
Other Details:
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Languages: eng Pagination: 041114 Citation Subset: - |
Affiliation:
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Institut für Physik, Humboldt-Universität zu Berlin, Newtonstr. 15, 12489 Berlin, Germany. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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