Krishnan, Raishma ; Dan, Debasis ; Jayannavar, A. M. (2005) Noise-induced currents and reliability of transport in frictional ratchets Physica A: Statistical Mechanics and its Applications, 354 . pp. 171-181. ISSN 0378-4371
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Official URL: http://linkinghub.elsevier.com/retrieve/pii/S03784...
Related URL: http://dx.doi.org/10.1016/j.physa.2005.01.056
Abstract
We study the coherence of transport of an overdamped Brownian particle in frictional ratchet system in the presence of external Gaussian white noise fluctuations. The analytical expressions for the particle velocity and diffusion coefficient are derived for this system and the reliability or coherence of transport is analysed by means of their ratio in terms of a dimensionless Peclet number. We show that the coherence in the transport can be enhanced or degraded depending sensitively on the frictional profile with respect to the underlying potential.
| Item Type: | Article |
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| Source: | Copyright of this article belongs to European Physical Society. |
| Keywords: | Ratchets; Brownian Motors; Noise; Transport Coherence |
| ID Code: | 14718 |
| Deposited On: | 12 Nov 2010 13:45 |
| Last Modified: | 16 May 2016 23:41 |
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