随机游动
重置(财务)
首次命中时间模型
随机游走算法
统计物理学
随机过程
扩散
竞赛(生物学)
国家(计算机科学)
领域(数学分析)
数学
稳态(化学)
过程(计算)
计算机科学
物理
数学分析
算法
统计
经济
生物
热力学
金融经济学
操作系统
生态学
物理化学
化学
作者
Rosa Flaquer-Galmés,Daniel Campos,Vicenç Méndez
出处
期刊:Physical review
[American Physical Society]
日期:2024-03-04
卷期号:109 (3): 034103-034103
被引量:2
标识
DOI:10.1103/physreve.109.034103
摘要
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 it does not react to the target. We demonstrate that Poissonian resetting leads to the existence of a non-equilibrium steady state. We calculate the distribution of the first arrival time to a target along with its mean and show the existence of an optimal reset rate. In particular, we prove that the initial condition of the walker, i.e., either starting diffusely or relocating, can significantly affect the long-time properties of the search process. Moreover, we demonstrate the presence of distinct parameter regimes for the global optimization of the mean first arrival time when ballistic and diffusive movements are in direct competition.
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