Abstract
We argue that the validity of the WKB approach for calculating nonequilibrium properties of a nonlinear stochastic system requires an additional criterion involving the time interval, compared with the standard WKB criterion considered by Mannella [R. Mannella, Phys. Rev. E 58, 2479 (1999)]. In order to clarify the situation, we compare the WKB solution with the direct numerical solution of the Fokker-Plank equation.
Original language | English (US) |
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Pages (from-to) | 2481-2482 |
Number of pages | 2 |
Journal | Physical Review E - Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics |
Volume | 59 |
Issue number | 2 |
DOIs | |
State | Published - 1999 |
All Science Journal Classification (ASJC) codes
- Statistical and Nonlinear Physics
- Statistics and Probability
- Condensed Matter Physics