A TEST FOR 2 FOKKER-PLANCK MODELINGS OF A MASTER EQUATION

Authors
MUNOZ MA GARRIDO PL
Citation
Ma. Munoz et Pl. Garrido, A TEST FOR 2 FOKKER-PLANCK MODELINGS OF A MASTER EQUATION, Journal of physics. A, mathematical and general, 28(9), 1995, pp. 2637-2646
Citations number
19
Categorie Soggetti
Physics
Journal title
Journal of physics. A, mathematical and general → ACNP
ISSN journal
03054470
Volume
28
Issue
9
Year of publication
1995
Pages
2637 - 2646
Database
ISI
SICI code
0305-4470(1995)28:9<2637:ATF2FM>2.0.ZU;2-4
Abstract
The kind of two Fokker-Planck equation modellings of a non-equilibrium system, defined by a two-variable master equation, is studied. We com pute explicitly their associated stationary potentials in the weak noi se limit, and we compare them with the exact one coming from the maste r equation. We find that a recently proposed Fokker-Planck equation is far better than the other coming from the commonly used Kramers-Moyal expansion.