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The European Physical Journal B
ISSN: 1434-6028 (printed version)
ISSN: 1434-6036 (electronic version)
Abstract Volume 3 Issue 2 (1998) pp 253-256
Quenching problem of globally coupled bistable stochastic systems with finite size
Y. Zhang (1) (a), G. Hu (1)(2)
(1) Physics Department, Beijing Normal University, Beijing 100875, China
(2) Center of Theoretical Physics, CCAST (World Laboratory), Beijing 8730, China
Received: 3 July 1997 / Revised: 4 December 1997 / Accepted: 15 January 1998
Abstract: The transient process of globally coupled bistable systems from an unstable state to metastable state (i.e, quenching process) is studied analytically for small noise intensity. The influences of noise intensity and system size on the system evolution are investigated. The problem of a large number of coupled Langevin equations is reduced to a simple problem of a one-dimensional ordinary differential equation, subject to a white noise with intensity explicitly given. The analytical results are fully confirmed by direct numerical computations.
PACS. 05.45.+j Fluctuation phenomena, random processes, and Brownian motion
(a) email: xdwen@email.bnu.edu.cn
Article in PDF-Format (280 KB)
Online publication: July 9, 1998
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