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The motion of particles in random potentials occurs in several natural phenomena ranging from the mobility of organelles within a biological cell to the diffusion of stars within a galaxy. A Brownian particle moving in the random optical…

光学 · 物理学 2014-02-06 Giorgio Volpe , Giovanni Volpe , Sylvain Gigan

We study the effects of mobility on two crucial characteristics in multi-scale dynamic networks: percolation and connection times. Our analysis provides insights into the question, to what extent long-time averages are well-approximated by…

概率论 · 数学 2021-03-05 Christian Hirsch , Benedikt Jahnel , Elie Cali

Study of random networks generally requires the nodes to be independently and uniformly distributed such as a Poisson point process. In this work, we venture beyond this standard paradigm and investigate a stochastic forest obtained from a…

概率论 · 数学 2023-02-28 Rahul Roy , Kumarjit Saha , Anish Sarkar

Using quantum parallelism on random walks as original seed, we introduce new quantum stochastic processes, the open quantum Brownian motions. They describe the behaviors of quantum walkers -- with internal degrees of freedom which serve as…

数学物理 · 物理学 2015-06-18 Michel Bauer , Denis Bernard , Antoine Tilloy

We consider a variant of the radial spanning tree introduced by Baccelli and Bordenave. Like the original model, our model is a tree rooted at the origin, built on the realization of a planar Poisson point process. Unlike it, the paths of…

概率论 · 数学 2014-03-24 Luiz Renato Fontes , Leon Valencia , Glauco Valle

Random walks are studied on disordered cellular networks in 2-and 3-dimensional spaces with arbitrary curvature. The coefficients of the evolution equation are calculated in term of the structural properties of the cellular system. The…

无序系统与神经网络 · 物理学 2009-10-28 Tomaso Aste

We introduce the P\'olya Web, a system of coalescing random walks based on the classic P\'olya urn model. This construction serves as an analogue to the web of coalescing random walks studied by T\'oth and Werner (1998), replacing simple…

概率论 · 数学 2026-01-21 Ákos Urbán

In this paper, it is presented the well known aspect of non linearity of internal human body structures. Similarity on the basis of the Fractional Brownian Motion from the static ones, as the geometrical fractals like the Intestine and…

医学物理 · 物理学 2008-06-25 Attilio Sacripanti

We introduce a new model called the Brownian Conga Line. It is a random curve evolving in time, generated when a particle performing a two dimensional Gaussian random walk leads a long chain of particles connected to each other by cohesive…

概率论 · 数学 2015-07-16 Sayan Banerjee

Two classes of interacting particle systems on $\mathbb{Z}$ are shown to be Pfaffian point processes at fixed times, and for all deterministic initial conditions. The first comprises coalescing and branching random walks, the second…

概率论 · 数学 2023-05-04 Barnaby Garrod , Roger Tribe , Oleg Zaboronski

Previously, Sarkar and Sun have shown that for supercritical oriented percolation in dimension $1+1$, the set of rightmost infinite open paths converges to the Brownian web after proper centering and scaling. In this note, we show that a…

概率论 · 数学 2019-10-25 Emmanuel Schertzer , Rongfeng Sun

The Brownian net, which has recently been introduced by Sun and Swart [SS08], and independently by Newman, Ravishankar and Schertzer [NRS08], generalizes the Brownian web by allowing branching. In this paper, we study the structure of the…

概率论 · 数学 2009-05-11 Emmanuel Schertzer , Rongfeng Sun , Jan M. Swart

Random walks are ubiquitous in the sciences, and they are interesting from both theoretical and practical perspectives. They are one of the most fundamental types of stochastic processes; can be used to model numerous phenomena, including…

物理与社会 · 物理学 2020-04-13 Naoki Masuda , Mason A. Porter , Renaud Lambiotte

A one-dimensional system of nonintersecting Brownian particles is constructed as the diffusion scaling limit of Fisher's vicious random walk model. $N$ Brownian particles start from the origin at time $t=0$ and undergo mutually avoiding…

统计力学 · 物理学 2009-11-10 Taro Nagao

We study the joint asymptotic behavior of spacings between particles at the edge of multilevel Dyson Brownian motions, when the number of levels tends to infinity. Despite the global interactions between particles in multilevel Dyson…

概率论 · 数学 2014-09-09 Vadim Gorin , Mykhaylo Shkolnikov

Nonintersecting motion of Brownian particles in one dimension is studied. The system is constructed as the diffusion scaling limit of Fisher's vicious random walk. N particles start from the origin at time t=0 and then undergo mutually…

统计力学 · 物理学 2009-11-07 Taro Nagao , Makoto Katori , Hideki Tanemura

A particle subject to successive, random displacements is said to execute a random walk (in position or some other coordinate). The mathematical properties of random walks have been very thoroughly investigated, and the model is used in…

统计力学 · 物理学 2007-05-23 M. Wilkinson , B. Mehlig

The purpose of this note is to collect in one place a few results about simple random walk and Brownian motion which are often useful. These include standard results such as Beurling estimates, large deviation estimates, and a method for…

概率论 · 数学 2007-05-23 Christian Benes

For the directed landscape, the putative universal space-time scaling limit object in the (1+1) dimensional Kardar-Parisi-Zhang (KPZ) universality class, consider the geodesic tree -- the tree formed by the coalescing semi-infinite…

概率论 · 数学 2025-04-18 Riddhipratim Basu , Manan Bhatia

We consider a model of Branching Brownian Motion in which the usual spatially-homogeneous and catalytic branching at a single point are simultaneously present. We establish the almost sure growth rates of population in certain…

概率论 · 数学 2018-03-29 Sergey Bocharov , Li Wang