Random walks and Brownian motion:: A method of computation for first-passage times and related quantities in confined geometries
Random walks and Brownian motion:: A method of computation for first-passage times and related quantities in confined geometries
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DOI:
10.1103/physreve.75.021111
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发表时间:
2007-02-01
影响因子:
2.4
通讯作者:
Moreau, M.
中科院分区:
文献类型:
--
作者:
Condamin, S.;Benichou, O.;Moreau, M.
In this paper we present a computation of the mean first-passage times both for a random walk in a discrete bounded lattice, between a starting site and a target site, and for a Brownian motion in a bounded domain, where the target is a sphere. In both cases, we also discuss the case of two targets, including splitting probabilities and conditional mean first-passage times. In addition, we study the higher-order moments and the full distribution of the first-passage time. These results significantly extend our earlier contribution [Condamin , Phys. Rev. Lett. 95, 260601 (2005)].