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We study exclusion processes on the integer lattice in which particles change their velocities due to stickiness. Specifically, whenever two or more particles occupy adjacent sites, they stick together for an extended period of time, and…

概率论 · 数学 2016-08-11 Miklós Z. Rácz , Mykhaylo Shkolnikov

A growing number of biological, soft, and active matter systems are observed to exhibit normal diffusive dynamics with a linear growth of the mean squared displacement, yet with a non-Gaussian distribution of increments. Based on the…

统计力学 · 物理学 2017-04-12 A. V. Chechkin , F. Seno , R. Metzler , I. M. Sokolov

We are interested in exploring interacting particle systems that can be seen as microscopic models for a particular structure of coupled transport flux arising when different populations are jointly evolving. The scenarios we have in mind…

偏微分方程分析 · 数学 2017-03-08 Manh Hong Duong , Adrian Muntean , Omar Richardson

Diffusion models have emerged as a powerful new family of deep generative models with record-breaking performance in many applications, including image synthesis, video generation, and molecule design. In this survey, we provide an overview…

机器学习 · 计算机科学 2025-09-30 Ling Yang , Zhilong Zhang , Yang Song , Shenda Hong , Runsheng Xu , Yue Zhao , Wentao Zhang , Bin Cui , Ming-Hsuan Yang

In this paper we compare the Boltzmann distribution with a modified Boltzmann distribution, that results from an It\^o-process considering thermal equilibrium of a Brownian particle with coordinate dependent diffusion, in the light of an…

统计力学 · 物理学 2022-07-19 Abhinav Dhawan , A. Bhattacharyay

Little is known about the coupling of rotation and translation in dense systems. Here, we report results of confocal fluorescence microscopy where simultaneous recording of translational and rotational particle trajectories from a…

软凝聚态物质 · 物理学 2024-11-08 John Geiger , Niklas Grimm , Matthis Fuchs , Andreas Zumbusch

Recent theoretical modeling offers a unified picture for the description of stochastic processes characterized by a crossover from anomalous to normal behavior. This is particularly welcome, as a growing number of experiments suggest the…

统计力学 · 物理学 2019-07-16 Fulvio Baldovin , Enzo Orlandini , Flavio Seno

In this paper a new multiscale modeling technique is proposed. It relies on a recently introduced measure-theoretic approach, which allows to manage the microscopic and the macroscopic scale under a unique framework. In the resulting…

数学物理 · 物理学 2011-01-24 Emiliano Cristiani , Benedetto Piccoli , Andrea Tosin

Diffusion models have become a powerful family of deep generative models, with record-breaking performance in many applications. This paper first gives an overview and derivation of the basic theory of diffusion models, then reviews the…

计算与语言 · 计算机科学 2023-03-15 Yuansong Zhu , Yu Zhao

Diffusion in bidisperse Brownian hard-sphere suspensions is studied by Stokesian Dynamics (SD) computer simulations and a semi-analytical theoretical scheme for colloidal short-time dynamics, based on Beenakker and Mazur's method [Physica…

软凝聚态物质 · 物理学 2015-05-06 Mu Wang , Marco Heinen , John F. Brady

We construct a class of one-dimensional diffusion processes on the particles of branching Brownian motion that are symmetric with respect to the limits of random martingale measures. These measures are associated with the extended extremal…

概率论 · 数学 2018-11-07 Sebastian Andres , Lisa Hartung

This pedagogical review addresses several issues related to statistical description of gravitating systems in both static and expanding backgrounds, focusing on the latter. After briefly reviewing the results for the static background, I…

天体物理学 · 物理学 2007-05-23 T. Padmanabhan

The model of Brownian Percolation has been introduced as an approximation of discrete last-passage percolation models close to the axis. It allowed to compute some explicit limits and prove fluctuation theorems for these, based on the…

概率论 · 数学 2010-09-29 Gregorio R. Moreno Flores

In this work, we investigate dispersion interactions in a selection of atomic, molecular, and molecule-surface systems, comparing high-level correlated methods with empirically-corrected density functional theory (DFT). We assess the…

化学物理 · 物理学 2021-01-27 Tyler J. Hughes , Robert A. Shaw , Salvy P. Russo

While the collective dynamics of spherical active Brownian particles is relatively well understood by now, the much more complex dynamics of nonspherical active particles still raises interesting open questions. Previous work has shown that…

软凝聚态物质 · 物理学 2023-07-31 Stephan Bröker , Michael te Vrugt , Raphael Wittkowski

We use Molecular Dynamics combined with Dissipative Particle Dynamics to construct a model of a binary mixture where the two species differ only in their dynamic properties (friction coefficients). For an asymmetric mixture of slow and fast…

软凝聚态物质 · 物理学 2009-11-11 Jacqueline Yaneva , Burkhard Duenweg , Andrey Milchev

The classical models for irreversible diffusion-influenced reactions can be derived by introducing absorbing boundary conditions to over-damped continuous Brownian motion (BM) theory. As there is a clear corresponding stochastic process,…

统计力学 · 物理学 2016-10-13 Mauricio J. Del Razo , Hong Qian

Flocculation is the process whereby particles (i.e., flocs) in suspension reversibly combine and separate. The process is widespread in soft matter and aerosol physics as well as environmental science and engineering. We consider a general…

动力系统 · 数学 2018-04-24 Inom Mirzaev , David M. Bortz

We consider a particular class of n-dimensional homogeneous diffusions all of which have an identity diffusion matrix and a drift function that is piecewise constant and scale invariant. Abstract stochastic calculus immediately gives us…

概率论 · 数学 2009-03-02 Sourav Chatterjee , Soumik Pal

Recent progress in experimental techniques such as single particle tracking allows to analyze both nonequilibrium properties and approach to equilibrium. There are examples showing that processes occurring at finite timescales are…

统计力学 · 物理学 2025-01-24 I. G. Marchenko , I. I. Marchenko , J. Łuczka , J. Spiechowicz