Abstract
The survival probability of a particle which moves according to a biased random walk in a one-dimensional lattice containing randomly distributed deep traps is studied at large times. Exact asymptotic expansions are deduced for fields exceeding a certain threshold, using the method of images. In order to cover the whole range of fields, we also derive the behavior of the survival probability below this threshold, using the eigenvalue expansion method. The connection with the continuous diffusion model is discussed.
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Aldea, A., Dulea, M. & Gartner, P. Long-time asymptotics in the one-dimensional trapping problem with large bias. J Stat Phys 52, 1061–1068 (1988). https://doi.org/10.1007/BF01019739
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DOI: https://doi.org/10.1007/BF01019739