Supersymmetric time-continuous discrete random walks

Details Supersymmetric time-continuous discrete random walks Supersymmetric time-continuous discrete random walks

1994-11-04

arxiv.org/abs/hep-th/9411026v2

Phys. Rev. E 51, 5112 (May 1995) [BR]

Physics

High Energy Physics

High Energy Physics - Theory

replaced with published version, 2 figures available from HCR, no essential changes, 11 pages of LaTex

Scientific paper

10.1103/PhysRevE.51.5112

We apply the supersymmetric procedure to one-step random walks in one dimension at the level of the usual master equation, extending a study initiated by H.R. Jauslin [Phys. Rev. A {\bf 41}, 3407 (1990)]. A discussion of the supersymmetric technique for this discrete case is presented by introducing a formal second-order discrete master derivative and its ``square root", and we solve completely, and in matrix form, the cases of homogeneous random walks (constant jumping rates). A simple generalization of Jauslin's results to two uncorrelated axes is also provided. There may be many applications, especially to bistable and multistable one-step processes.

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