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Sisyphus random walks in the presence of moving traps

Probability 2025-03-12 v1 Statistical Mechanics

Abstract

It has recently been proved that, in the presence of a static absorbing trap, Sisyphus random walkers with a restart mechanism are characterized by {\it exponentially} decreasing asymptotic survival probability functions. Interestingly, in the present compact paper we prove analytically that, in the presence of a moving trap whose velocity approaches zero asymptotically in time as vtrap1/tv_{\text{trap}}\sim 1/t, the survival probabilities of the Sisyphus walkers are dramatically changed into inverse {\it power-law} decaying tails.

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Cite

@article{arxiv.2503.08171,
  title  = {Sisyphus random walks in the presence of moving traps},
  author = {Shahar Hod},
  journal= {arXiv preprint arXiv:2503.08171},
  year   = {2025}
}

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9 pages