Bulk-Boundary Correspondence in Ergodic and Nonergodic One-Dimensional Stochastic Processes

Fuente: arXiv
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Main Authors: Sawada, Taro, Sone, Kazuki, Yokomizo, Kazuki, Ashida, Yuto, Sagawa, Takahiro
Format: Preprint
Published: 2024
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author Sawada, Taro
Sone, Kazuki
Yokomizo, Kazuki
Ashida, Yuto
Sagawa, Takahiro
author_facet Sawada, Taro
Sone, Kazuki
Yokomizo, Kazuki
Ashida, Yuto
Sagawa, Takahiro
contents Bulk-boundary correspondence is a fundamental principle in topological physics. In recent years, there have been considerable efforts in extending the idea of geometry and topology to classical stochastic systems far from equilibrium. However, it has been unknown whether or not the bulk-boundary correspondence can be extended to the steady states of stochastic processes accompanied by additional constraints such as the conservation of probability. The present study reveals the general form of bulk-boundary correspondence in classical stochastic processes. Specifically, we prove a correspondence between the winding number and the number of localized steady states in both ergodic and nonergodic systems. Furthermore, we extend the argument of the bulk-boundary correspondence to a many-body stochastic model called the asymmetric simple exclusion process (ASEP). These results would provide a guiding principle for exploring topological origin of localization in various stochastic processes including biological systems.
format Preprint
id arxiv_https___arxiv_org_abs_2405_00458
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Bulk-Boundary Correspondence in Ergodic and Nonergodic One-Dimensional Stochastic Processes
Sawada, Taro
Sone, Kazuki
Yokomizo, Kazuki
Ashida, Yuto
Sagawa, Takahiro
Mesoscale and Nanoscale Physics
Statistical Mechanics
Bulk-boundary correspondence is a fundamental principle in topological physics. In recent years, there have been considerable efforts in extending the idea of geometry and topology to classical stochastic systems far from equilibrium. However, it has been unknown whether or not the bulk-boundary correspondence can be extended to the steady states of stochastic processes accompanied by additional constraints such as the conservation of probability. The present study reveals the general form of bulk-boundary correspondence in classical stochastic processes. Specifically, we prove a correspondence between the winding number and the number of localized steady states in both ergodic and nonergodic systems. Furthermore, we extend the argument of the bulk-boundary correspondence to a many-body stochastic model called the asymmetric simple exclusion process (ASEP). These results would provide a guiding principle for exploring topological origin of localization in various stochastic processes including biological systems.
title Bulk-Boundary Correspondence in Ergodic and Nonergodic One-Dimensional Stochastic Processes
topic Mesoscale and Nanoscale Physics
Statistical Mechanics
url https://arxiv.org/abs/2405.00458