arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 0806.0236cond-mat.stat-mechcond-mat.soft
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高维系统中的主导反应途径

Dominant Reaction Pathways in High Dimensional Systems

E. Autieri, P. Faccioli, M. Sega, F. Pederiva, H. Orland

摘要:

本文致力于发展一个理论和计算框架,以有效地采样的统计显着的热活化反应途径,在多维系统服从朗之万动力学。我们展示了如何获得一组最可能的反应途径,并计算由于二次热波动的修正等轨迹。我们讨论了如何获得任意观测量的演化预测,以及如何生成代表过渡态系综的构象。我们通过研究点粒子在二维漏斗形外势场中的扩散,给出了我们方法的一个示例性实现。

英文摘要:

This paper is devoted to the development of a theoretical and computational framework to efficiently sample the statistically significant thermally activated reaction pathways, in multi-dimensional systems obeying Langevin dynamics. We show how to obtain the set of most probable reaction pathways and compute the corrections due to quadratic thermal fluctuations around such trajectories. We discuss how to obtain predictions for the evolution of arbitrary observables and how to generate conformations which are representative of the transition state ensemble. We present an illustrative implementation of our method by studying the diffusion of a point particle in a 2-dimensional funneled external potential.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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