Full Record Statistics of 1d Random Walks

Fuente: arXiv
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Main Authors: Régnier, Léo, Dolgushev, Maxim, Bénichou, Olivier
Format: Preprint
Published: 2023
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author Régnier, Léo
Dolgushev, Maxim
Bénichou, Olivier
author_facet Régnier, Léo
Dolgushev, Maxim
Bénichou, Olivier
contents We develop a comprehensive framework for analyzing full record statistics, covering record counts $M(t_1), M(t_2), \ldots$, and their corresponding attainment times $T_{M(t_1)}, T_{M(t_2)}, \ldots$, as well as the intervals until the next record. From this multiple-time distribution, we derive general expressions for various observables related to record dynamics, including the conditional number of records given the number observed at a previous time and the conditional time required to reach the current record, given the occurrence time of the previous one. Our formalism is exemplified by a variety of stochastic processes, including biased nearest-neighbor random walks, asymmetric run-and-tumble dynamics, and random walks with stochastic resetting.
format Preprint
id arxiv_https___arxiv_org_abs_2312_14885
institution arXiv
publishDate 2023
record_format arxiv
spellingShingle Full Record Statistics of 1d Random Walks
Régnier, Léo
Dolgushev, Maxim
Bénichou, Olivier
Statistical Mechanics
Mathematical Physics
Data Analysis, Statistics and Probability
We develop a comprehensive framework for analyzing full record statistics, covering record counts $M(t_1), M(t_2), \ldots$, and their corresponding attainment times $T_{M(t_1)}, T_{M(t_2)}, \ldots$, as well as the intervals until the next record. From this multiple-time distribution, we derive general expressions for various observables related to record dynamics, including the conditional number of records given the number observed at a previous time and the conditional time required to reach the current record, given the occurrence time of the previous one. Our formalism is exemplified by a variety of stochastic processes, including biased nearest-neighbor random walks, asymmetric run-and-tumble dynamics, and random walks with stochastic resetting.
title Full Record Statistics of 1d Random Walks
topic Statistical Mechanics
Mathematical Physics
Data Analysis, Statistics and Probability
url https://arxiv.org/abs/2312.14885