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arXiv 1309.7699cond-mat.stat-mech
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消逝连续时间随机游动

Evanescent continuous time random walks

E. Abad, S. B. Yuste, Katja Lindenberg

摘要:

我们研究了一个渐逝过程如何影响一维连续时间随机步行者访问的不同站点的数量。我们区分两种非常不同的情况,即,当瞬逝只能同时发生的跳跃,当瞬逝可以发生在任何时候。第一个是晶格上的捕获过程的特征,而第二个与自发死亡过程(如放射性衰变)有关。在这两种情况下,我们考虑跳跃之间的等待时间分布的三种不同形式,即指数,长尾和超慢。

英文摘要:

We study how an evanescence process affects the number of distinct sites visited by a continuous time random walker in one dimension. We distinguish two very different cases, namely, when evanescence can only occur concurrently with a jump, and when evanescence can occur at any time. The first is characteristic of trapping processes on a lattice, whereas the second is associated with spontaneous death processes such as radioactive decay. In both of these situations we consider three different forms of the waiting time distribution between jumps, namely, exponential, long-tailed, and ultra-slow.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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