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We consider $N$ Brownian motions diffusing independently on a line, starting at $x_0>0$, in the presence of an absorbing target at the origin. The walkers undergo stochastic resetting under two protocols: (A) each walker resets…

统计力学 · 物理学 2023-11-22 Marco Biroli , Satya N. Majumdar , Gregory Schehr

We determine the full distribution and moments of the first passage time for a wide class of stochastic search processes in the limit of frequent stochastic resetting. Our results apply to any system whose short-time behavior of the search…

统计力学 · 物理学 2023-02-22 Samantha Linn , Sean D Lawley

We study first-passage time problems for a diffusive particle with stochastic resetting with a finite rate $r$. The optimal search time is compared quantitatively with that of an effective equilibrium Langevin process with the same…

统计力学 · 物理学 2015-06-12 Martin R. Evans , Satya N. Majumdar , Kirone Mallick

Stochastic resetting has been a subject of considerable interest within statistical physics, both as means of improving completion times of complex processes such as searches and as a paradigm for generating nonequilibrium stationary…

统计力学 · 物理学 2025-04-09 Martin R. Evans , John C. Sunil

We analyze a one-dimensional intermittent random walk on an unbounded domain in the presence of stochastic resetting. In this process, the walker alternates between local intensive search, diffusion, and rapid ballistic relocations in which…

统计力学 · 物理学 2024-01-31 Rosa Flaquer-Galmés , Daniel Campos , Vicenç Méndez

We investigate a stochastic search process in one dimension under the competing roles of mortality, redundancy, and diversity of the searchers. This picture represents a toy model for the fertilization of an oocyte by sperm. A population of…

统计力学 · 物理学 2015-05-20 Baruch Meerson , S. Redner

We study the effect of a resetting point randomly distributed around the origin on the mean first passage time of a Brownian searcher moving in one dimension. We compare the search efficiency with that corresponding to reset to the origin…

统计力学 · 物理学 2024-01-03 Vicenç Mendez , Rosa Flaquer-Galmés , Daniel Campos

The effects of Poissonian resetting at a constant rate $r$ on the reaction time between a Brownian particle and a stochastically gated target are studied. The target switches between a reactive state and a non-reactive one. We calculate the…

统计力学 · 物理学 2021-10-11 Gabriel Mercado-Vásquez , Denis Boyer

We analyze predator-prey dynamics in one dimension in which a Brownian predator adopts a chasing strategy that consists in stochastically resetting its current position to locations previously visited by a diffusive prey. We study three…

无序系统与神经网络 · 物理学 2019-12-05 J. Quetzalcoatl Toledo-Marin , Denis Boyer , Francisco J. Sevilla

We investigate an intermittent stochastic process, in which the diffusive motion with time-dependent diffusion coefficient $D(t)\sim t^{\alpha-1}$, $\alpha>0$ (scaled Brownian motion), is stochastically reset to its initial position and…

统计力学 · 物理学 2019-07-24 Anna S. Bodrova , Aleksei V. Chechkin , Igor M. Sokolov

We study the first-passage time to the origin of a mortal Brownian particle, with mortality rate $ \mu $, diffusing in one dimension. The particle starts its motion from $ x>0 $ and it is subject to stochastic resetting with constant rate $…

统计力学 · 物理学 2023-03-01 Mattia Radice

In many physical situations, there appears the problem of reaching a single target that is spatially distributed. Here we analyse how stochastic resetting, also spatially distributed, can be used to improve the search process when the…

We study experimentally, numerically and theoretically the optimal mean time needed by a Brownian particle, freely diffusing either in one or two dimensions, to reach, within a tolerance radius $R_{\text tol}$, a target at a distance $L$…

统计力学 · 物理学 2022-02-08 Felix Faisant , Benjamin Besga , Artyom Petrosyan , Sergio Ciliberto , Satya N. Majumdar

For $d\ge1$ and $r>0$, let $X^{(d;r)}(\cdot)$ be a $d$-dimensional Brownian motion with diffusion coefficient $D$, equipped with an exponential clock with rate $r$. When the clock rings, the process jumps to the origin and begins anew. For…

概率论 · 数学 2023-07-20 Ross G. Pinsky

Stochastic resetting has emerged as a useful strategy to reduce the completion time for a broad class of first passage processes. In the canonical setup, one intermittently resets a given system to its initial configuration only to start…

统计力学 · 物理学 2025-01-28 Arup Biswas , Ashutosh Dubey , Anupam Kundu , Arnab Pal

We consider motion of an overdamped Brownian particle subject to stochastic resetting in one dimension. In contrast to the usual setting where the particle is instantaneously reset to a preferred location (say, the origin), here we consider…

统计力学 · 物理学 2021-05-26 Deepak Gupta , Arnab Pal , Anupam Kundu

In this paper we consider the diffusive search for a bounded target $\Omega \in \R^d$ with its boundary $\partial \Omega$ totally absorbing. We assume that the target is surrounded by a semipermeable interface given by the closed surface…

统计力学 · 物理学 2023-03-08 Paul C Bressloff

By periodically returning a search process to a known or random state, random resetting possesses the potential to unveil new trajectories, sidestep potential obstacles, and consequently enhance the efficiency of locating desired targets.…

统计力学 · 物理学 2024-12-31 Arnab Pal , Viktor Stojkoski , Trifce Sandev

The mean completion time of a stochastic process may be rendered finite and minimised by a judiciously chosen restart protocol, which may either be stochastic or deterministic. Here we study analytically an arbitrary stochastic search…

定量方法 · 定量生物学 2016-09-14 Kabir Husain , Sandeep Krishna

We study a Brownian particle diffusing under a time-modulated stochastic resetting mechanism to a fixed position. The rate of resetting r(t) is a function of the time t since the last reset event. We derive a sufficient condition on r(t)…

统计力学 · 物理学 2016-05-18 Arnab Pal , Anupam Kundu , Martin R. Evans