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Survival probability and fluctuations in random trapping models

✍ Scribed by A.M. Jayannavar

Publisher
Elsevier Science
Year
1991
Tongue
English
Weight
394 KB
Volume
179
Category
Article
ISSN
0378-4371

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✦ Synopsis

Through a very simple treatment we have constructed a lower bound for the statistical fluctuations of the survival probability of particles moving diffusively in a medium with random traps. We show that in the asymptotic regime the total survival probability is a non-self-averaging quantity, in that the fluctuations dominate the mean value.

πŸ“œ SIMILAR VOLUMES

Logarithmic corrections in the survival
Logarithmic corrections in the survival probability for random walks in random trapping environments
✍ J. KΓΆhler πŸ“‚ Article πŸ“… 1990 πŸ› Elsevier Science 🌐 English βš– 534 KB

We study the survival probability of a particle that performs a random walk in a medium with traps where the trapping strength V is distributed randomly. We use an approach which is asymptotically exact and brings Wn(s), the number of distinct sites s visited after n steps, into play. Particularly i