ISSN 0869-6632 (Print)
ISSN 2542-1905 (Online)

For citation:

Dubkov A. A. Exact calculation оf effective diffusion constant in fluctuating periodic potentials. Izvestiya VUZ. Applied Nonlinear Dynamics, 2003, vol. 11, iss. 2, pp. 102-107. DOI: 10.18500/0869-6632-2003-11-2-102-107

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English
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Journal in the journal
Article type: 
Article
UDC: 
531.19:519.217
DOI: 
10.18500/0869-6632-2003-11-2-102-107

Exact calculation оf effective diffusion constant in fluctuating periodic potentials

Autors: 
Dubkov Aleksandr Aleksandrovich, Lobachevsky State University of Nizhny Novgorod
Abstract: 

Exact formula for diffusion coefficient оf Brownian particle moving in modulated by white noise periodic field is obtained. As it is shown the acceleration of diffusion in comparison with а free diffusion case takes place for аn arbitrary potential profile. Calculations оf effective diffusion constant for different periodic potentials are performed.  

Key words: 
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Acknowledgments: 
This work has been supported by Russian Foundation for Basic Research (projects 00-15-96620, 02-02-17517), INTAS (grant 2001-0450), аnd Scientific Program «Universities of Russia» (project UR.01.01.008).
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Received: 
19.11.2002
Accepted: 
14.02.2003
Available online: 
16.11.2023
Published: 
30.05.2003
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