TIME-CORRELATION FUNCTION IN A STOCHASTIC BISTABLE MODEL

被引：9

作者：

MORILLO, M

GOMEZORDONEZ, J

机构：

[1] Universidad de Sevilla, Facultad de Física, Física Teórica, Sevilla 41080

来源：

PHYSICAL REVIEW A | 1992年 / 46卷 / 10期

关键词：

D O I：

10.1103/PhysRevA.46.6738

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The numerical solution of a one-dimensional Fokker-Planck equation by means of the split operator method of Feit, Fleck, and Steiger [J. Comput. Phys. 47, 412 (1982)] is used to analyze the time-correlation function of a stochastic variable in a bistable potential. We find the relaxation to be well described by an exponential law. The rate contains a dynamical renormalization term arising from a memory kernel, which is essential to describe the dynamics.

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页码：6738 / 6741

页数：4

相关论文

共 14 条

[1]

[Anonymous], 1984, SPRINGER SERIES SYNE

[2] DIFFUSION IN A POTENTIAL-FIELD - PATH-INTEGRAL APPROACH [J].

BAIBUZ, VF ;

ZITSERMAN, VY ;

DROZDOV, AN .

PHYSICA A, 1984, 127 (1-2) :173-193

[3]

Bixon M., 1971, Journal of Statistical Physics, V3, P245, DOI 10.1007/BF01011383

[4] SPECTRAL DENSITY FOR A NONLINEAR FOKKER-PLANCK MODEL - MONTE-CARLO AND ANALYTICAL STUDIES [J].

BREY, JJ ;

CASADO, JM ;

MORILLO, M .

PHYSICAL REVIEW A, 1985, 32 (05) :2893-2898

[5] SPECTRAL DENSITY FROM NONLINEAR FOKKER-PLANCK EQUATIONS - THE HIGH-FREQUENCY LIMIT [J].

BREY, JJ ;

CASADO, JM ;

MORILLO, M .

PHYSICAL REVIEW A, 1984, 30 (03) :1535-1536

[6] RELATIONSHIP OF FLUCTUATIONS AND TRANSPORT FOR NONLINEAR MARKOV-PROCESSES [J].

DUFTY, JW ;

BREY, JJ ;

MARCHETTI, MC .

PHYSICAL REVIEW A, 1986, 33 (06) :4307-4311

[7] SOLUTION OF THE SCHRODINGER-EQUATION BY A SPECTRAL METHOD [J].

FEIT, MD ;

FLECK, JA ;

STEIGER, A .

JOURNAL OF COMPUTATIONAL PHYSICS, 1982, 47 (03) :412-433

[8] NUMERICAL-ANALYSIS OF THE SMOLUCHOWSKI EQUATION USING THE SPLIT OPERATOR METHOD [J].

GOMEZORDONEZ, J ;

MORILLO, M .

PHYSICA A, 1992, 183 (04) :490-507

[9] NUMERICAL-INTEGRATION OF STOCHASTIC DIFFERENTIAL-EQUATIONS .2. [J].

GREENSIDE, HS ;

HELFAND, E .

BELL SYSTEM TECHNICAL JOURNAL, 1981, 60 (08) :1927-1940

[10] STRATEGIES FOR FLUCTUATION RENORMALIZATION IN NONLINEAR TRANSPORT-THEORY [J].

NORDHOLM, KS ;

ZWANZIG, R .

JOURNAL OF STATISTICAL PHYSICS, 1974, 11 (02) :143-158