GRADIENT EXPANSION OF THE NONEQUILIBRIUM POTENTIAL FOR THE SUPERCRITICAL GINZBURG-LANDAU EQUATION

被引:21
作者
DESCALZI, O
GRAHAM, R
机构
[1] Fachbereich Physik, Universität Essen
关键词
D O I
10.1016/0375-9601(92)90777-J
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
A gradient expansion is used to obtain a Lyapunov functional (the nonequilibrium potential) for the supercritical complex Ginzburg-Landau equation. The method simplifies the task of solving the Hamilton-Jacobi equation associated with the steady-state distribution of the stochastic Ginzburg-Landau equation with weak noise and it confirms and extends results obtained previously by a more tedious calculation. The method opens the possibility for studying other situations not yet explored.
引用
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页码:84 / 90
页数:7
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