Effect of noise on a particle moving in a periodic potential
Effect of noise on a particle moving in a periodic potential
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DOI：
10.1103/physreve.65.011104
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发表时间：
2002-01-01
影响因子：
2.4
通讯作者：
Berdichevsky, V
中科院分区：
文献类型：
--
作者：
Gitterman, M;Berdichevsky, V
结果表明，对于具有周期性势的系统，通量对加性或/和乘性噪声的强度非常敏感。当乘性噪声的强度达到势垒高度的量级时，它就变得很重要，并且它提供了一种额外控制通量的方法（约瑟夫森结的电压-电流特性）。除了数值分析之外，还对弱和强加性噪声的情况进行了分析。
It is shown that for systems with a periodic potential, the flux is very sensitive to the strength of additive or/and multiplicative noise. Multiplicative noise becomes important when its strength is of the order of the barrier height, and it provides a means of additional control of the flux (voltage-current characteristics for a Josephson junction). In addition to a numerical analysis, the cases of weak and strong additive noise have also been considered analytically.