Eun Changsun, Kim Ji-Hyun, Lee Jinuk, Bae Je Hyun, Lim Yu Rim, Lee Sangyoub, Sung Jaeyoung
Department of Chemistry, Chung-Ang University, Seoul 156-756, Korea.
J Phys Chem B. 2007 Sep 6;111(35):10468-73. doi: 10.1021/jp071640s. Epub 2007 Aug 16.
We investigate the first passage times for the contact between the ends of a Rouse chain, whose initial separation is greater than a predefined contact distance, sigma, and equilibrium-distributed. An approximate analytic expression for the mean first passage time is obtained and compared with the results of previous theories and Brownian dynamics simulations. We find that the results of the present theory are in better agreement with Brownian dynamics simulation results than those of previously reported theories.
我们研究了Rouse链两端接触的首次通过时间，该Rouse链的初始间距大于预定义的接触距离σ，且处于平衡分布。得到了平均首次通过时间的近似解析表达式，并与先前理论和布朗动力学模拟的结果进行了比较。我们发现，与先前报道的理论相比，本理论的结果与布朗动力学模拟结果的吻合度更高。
