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ファイル | 記述 | サイズ | フォーマット | |
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PhysRevE.92.012105.pdf | 167.79 kB | Adobe PDF | 見る/開く |
タイトル: | Langevin dynamics neglecting detailed balance condition. |
著者: | Ohzeki, Masayuki Ichiki, Akihisa |
著者名の別形: | 大関, 真之 |
発行日: | 6-Jul-2015 |
出版者: | American Physical Society |
誌名: | Physical review. E, Statistical, nonlinear, and soft matter physics |
巻: | 92 |
号: | 1 |
論文番号: | 012105 |
抄録: | An improved method for driving a system into a desired distribution, for example, the Gibbs-Boltzmann distribution, is proposed, which makes use of an artificial relaxation process. The standard techniques for achieving the Gibbs-Boltzmann distribution involve numerical simulations under the detailed balance condition. In contrast, in the present study we formulate the Langevin dynamics, for which the corresponding Fokker-Planck operator includes an asymmetric component violating the detailed balance condition. This leads to shifts in the eigenvalues and results in the acceleration of the relaxation toward the steady state. The numerical implementation demonstrates faster convergence and shorter correlation time, and the technique of biased event sampling, Nemoto-Sasa theory, further highlights the efficacy of our method. |
著作権等: | ©2015 American Physical Society |
URI: | http://hdl.handle.net/2433/201539 |
DOI(出版社版): | 10.1103/PhysRevE.92.012105 |
PubMed ID: | 26274123 |
出現コレクション: | 学術雑誌掲載論文等 |
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