Borromeo M, Marchesoni F
Dipartimento di Fisica and Istituto Nazionale di Fisica Nucleare, Universita di Perugia, I-06100 Perugia, Italy.
Phys Rev Lett. 2000 Jan 10;84(2):203-7. doi: 10.1103/PhysRevLett.84.203.
Driven diffusion of a Brownian particle along a one-dimensional lattice is investigated numerically on decreasing its damping constant. The notions of multiple jumps, jump reversal, and backward-to-forward rates are discussed in detail. In particular, we conclude that in the underdamped limit backward jumps are suppressed relative to forward jumps more effectively than previously assumed. The dependence of such a drive-controlled mechanism on the damping constant and the temperature is interpreted analytically.
通过数值模拟研究了布朗粒子在一维晶格上沿驱动扩散时阻尼常数减小的情况。详细讨论了多次跳跃、跳跃反转和向后到向前速率的概念。特别地，我们得出结论，在欠阻尼极限下，向后跳跃相对于向前跳跃的抑制比之前假设的更有效。这种驱动控制机制对阻尼常数和温度的依赖性通过解析进行了解释。
