Fokker-Planck equation for bistable potential in the optimized expansion.

نویسنده

  • Anna Okopińska
چکیده

The optimized expansion is used to formulate a systematic approximation scheme to the probability distribution of a stochastic system. The first-order approximation for the one-dimensional system driven by noise in an anharmonic potential is shown to agree well with the exact solution of the Fokker-Planck equation. Even for a bistable system the whole period of evolution to equilibrium is correctly described at various noise intensities.

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عنوان ژورنال:
  • Physical review. E, Statistical, nonlinear, and soft matter physics

دوره 65 6 Pt 1  شماره 

صفحات  -

تاریخ انتشار 2002