首页> 外文期刊>Chemical Physics: A Journal Devoted to Experimental and Theoretical Research Involving Problems of Both a Chemical and Physical Nature >Effect of non Markovian dynamics on Barrier crossing dynamics of a charged particle in presence of a magnetic field
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Effect of non Markovian dynamics on Barrier crossing dynamics of a charged particle in presence of a magnetic field

机译:磁场存在下非马尔可夫动力学对带电粒子势垒穿越动力学的影响

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摘要

In this paper we have studied the effect of non Markovian thermal bath on the barrier crossing dynamics of a charged particle which is embedded in a non Markovian thermal bath in presence of a constant magnetic field. Based on the Fokker-Planck description of stochastic process in the extended phase space we have calculated barrier crossing rate. It exhibits that the barrier crossing rate for a given magnetic field strength enhances as the thermal bath deviates more from Markovian characteristics by increasing memory time of the dynamics. This may account deviation of experimental result from the Kramer's rate.
机译:在本文中,我们研究了非马氏热浴对带电粒子的势垒穿越动力学的影响,该带电粒子在恒定磁场存在下嵌入非马氏热浴中。根据扩展相空间中随机过程的Fokker-Planck描述,我们计算了势垒穿越率。结果表明,当给定磁场强度增加时,势垒穿越率会随着热浴通过增加动态记忆时间而更加偏离马尔可夫特性而提高。这可以解释实验结果与克拉默率的偏差。

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