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We formulate a theory of the many-body localization transition based on a novel real space renormalization group (RG) approach. The results of this theory are corroborated and intuitively explained with a phenomenological effective…

无序系统与神经网络 · 物理学 2015-09-21 Ronen Vosk , David A. Huse , Ehud Altman

Engineering dissipative dynamics in open quantum systems is under active focus, especially in topological settings where resilient edge modes are expected to exhibit decay rates distinct from the bulk. In this letter, we propose an…

介观与纳米尺度物理 · 物理学 2025-12-01 Koustav Roy , Shahroze Shahab , Saurabh Basu

We explore the effect of stochastic resetting on the first-passage properties of space-dependent diffusion in presence of a constant bias. In our analytically tractable model system, a particle diffusing in a linear potential…

统计力学 · 物理学 2020-12-23 Somrita Ray

Diffusion with an incorporated resetting mechanism provides a reference framework for modeling a wide range of natural phenomena. Within this framework, the optimal resetting rate is a key quantity that arises from the optimization of the…

统计力学 · 物理学 2026-05-12 Pedro Julián-Salgado , Pavel Castro-Villarreal , Leonardo Dagdug , Denis Boyer

We consider the problem of diffusion with stochastic resetting in a population of random walks where the diffusion coefficient is not constant, but behaves as a power-law of the average resetting rate of the population. Resetting occurs…

统计力学 · 物理学 2022-09-07 Eric Bertin

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

Previous work has established that the localized regime of wave transport in open media is characterized by a position-dependent diffusion coefficient. In this work we study how the concept of position-dependent diffusion affects the delay…

无序系统与神经网络 · 物理学 2017-05-24 B. A. van Tiggelen , S. E. Skipetrov , J. H. Page

The canonical Evans--Majumdar model for diffusion with stochastic resetting to the origin assumes that resetting takes zero time: upon resetting the diffusing particle is teleported back to the origin to start its motion anew. However, in…

统计力学 · 物理学 2019-10-18 Arnab Pal , Łukasz Kuśmierz , Shlomi Reuveni

Consider a uniform rooted Cayley tree $T_{n}$ with $n$ vertices and let $m$ cars arrive sequentially, independently, and uniformly on its vertices. Each car tries to park on its arrival node, and if the spot is already occupied, it drives…

概率论 · 数学 2021-07-06 Alice Contat , Nicolas Curien

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

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 study the dynamics of a Brownian motion with a diffusion coefficient which evolves stochastically. We first study this process in arbitrary dimensions and find the scaling form and the corresponding scaling function of the position…

统计力学 · 物理学 2023-01-30 Ion Santra , Urna Basu , Sanjib Sabhapandit

We consider the mean time to absorption by an absorbing target of a diffusive particle with the addition of a process whereby the particle is reset to its initial position with rate $r$. We consider several generalisations of the model of…

统计力学 · 物理学 2015-11-24 Martin R. Evans , Satya N. Majumdar

Source localization is the inverse problem of graph information dissemination and has broad practical applications. However, the inherent intricacy and uncertainty in information dissemination pose significant challenges, and the ill-posed…

机器学习 · 计算机科学 2023-04-19 Bosong Huang , Weihao Yu , Ruzhong Xie , Jing Xiao , Jin Huang

We consider a model of aggregation, both diffusion-limited and ballistic, based on the Cayley tree. Growth is from the leaves of the tree towards the root, leading to non-trivial screening and branch competition effects. The model exhibits…

软凝聚态物质 · 物理学 2009-10-31 M. B. Hastings , Thomas C. Halsey

We study analytically the late time statistics of the number of particles in a growing tree model introduced by Aldous and Shields. In this model, a cluster grows in continuous time on a binary Cayley tree, starting from the root, by…

统计力学 · 物理学 2009-11-11 David S. Dean , Satya N. Majumdar

We consider the stochastic dynamics near zero-temperature of the random ferromagnetic Ising model on a Cayley tree of branching ratio $K$. We apply the Boundary Real Space Renormalization procedure introduced in our previous work (C.…

无序系统与神经网络 · 物理学 2013-05-20 Cecile Monthus , Thomas Garel

We study transport in a one-dimensional lattice system with two conserved quantities -- `volume' and energy. Considering a slowly evolving local equilibrium state that is slightly deviated from an underlying global equilibrium, we estimate…

统计力学 · 物理学 2023-07-19 Anupam Kundu

The 'Cavity-Mean-Field' approximation developed for the Random Transverse Field Ising Model on the Cayley tree [L. Ioffe and M. M\'ezard, PRL 105, 037001 (2010)] has been found to reproduce the known exact result for the surface…

无序系统与神经网络 · 物理学 2012-01-18 Cecile Monthus , Thomas Garel

Using an exact mapping to disordered Coulomb gases, we introduce a novel method to study two dimensional Dirac fermions with quenched disorder in two dimensions which allows to treat non perturbative freezing phenomena. For purely random…

凝聚态物理 · 物理学 2009-11-07 Baruch Horovitz , Pierre Le Doussal