重置(财务)
概率密度函数
数学
拉普拉斯变换
统计物理学
常量(计算机编程)
随机过程
扩散
扩散过程
流离失所(心理学)
高斯分布
首次命中时间模型
数学分析
物理
计算机科学
统计
量子力学
金融经济学
经济
知识管理
创新扩散
心理治疗师
程序设计语言
心理学
作者
R. K. Singh,K. Górska,Trifce Sandev
出处
期刊:Physical review
[American Physical Society]
日期:2022-06-29
卷期号:105 (6): 064133-064133
被引量:20
标识
DOI:10.1103/physreve.105.064133
摘要
We address the effect of stochastic resetting on diffusion and subdiffusion process. For diffusion we find that mean square displacement relaxes to a constant only when the distribution of reset times possess finite mean and variance. In this case, the leading order contribution to the probability density function (PDF) of a Gaussian propagator under resetting exhibits a cusp independent of the specific details of the reset time distribution. For subdiffusion we derive the PDF in Laplace space for arbitrary resetting protocol. Resetting at constant rate allows evaluation of the PDF in terms of H function. We analyze the steady state and derive the rate function governing the relaxation behavior. For a subdiffusive process the steady state could exist even if the distribution of reset times possesses only finite mean.
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