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arXiv · 1811.06742

Stochastic processes subject to a reset-and-residence mechanism: transport properties and first arrival statistics

Axel Masó-Puigdellosas·Daniel Campos·Vicenç Méndez
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Abstract

In this work we consider a stochastic movement process with random resets to the origin followed by a random residence time there before the walker restarts its motion. First, we study the transport properties of the walker, we derive an expression for the mean square displacement of the overall process and study its dependence with the statistical properties of the resets, the residence and the movement. From this general formula, we see that the inclusion of the residence after the resets is able to induce super-diffusive to sub-diffusive (or diffusive) regimes and it can also make a sub-diffusive walker reach a constant MSD or even collapse. Second, we study how the reset-and-residence mechanism affects the first arrival time of different search processes to a given position, showing that the long time behavior of the reset and residence time distributions determine the existence of the mean first arrival time.

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Axel Masó-Puigdellosas, Daniel Campos, Vicenç Méndez. 2018-11-16. Stochastic processes subject to a reset-and-residence mechanism: transport properties and first arrival statistics. https://doi.org/10.1088/1742-5468%2Fab02f3

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