Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700 032, India.
J Chem Phys. 2010 Jun 14;132(22):224102. doi: 10.1063/1.3431042.
Varying cross section of confinement of a Brownian particle in two or higher dimensions results in an effective entropic barrier in reduced dimension. When the boundaries are subjected to periodic modulation, it is possible to observe a resonance of the mean first passage time between the lobes of a bilobal confined system as a function of the modulating frequency of the walls of the enclosure. The entropic resonant activation and the associated features, which are characteristic of the shape and size of the confinement, are amenable to a theoretical analysis in terms of a two-state model.
在二维或更高维度中，布朗粒子的约束横截面的变化会导致有效熵障在降维空间中出现。当边界受到周期性调制时，可以观察到双叶受限系统的瓣间平均首次通过时间作为封闭壁调制频率的函数的共振。熵共振激活及其相关特征，是约束形状和大小的特征，适用于基于两态模型的理论分析。
