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We study the stationary states of an over-damped active Brownian particle (ABP) in a harmonic trap in two dimensions, via mathematical calculations and numerical simulations. In addition to translational diffusion, the ABP self-propels with…

统计力学 · 物理学 2023-07-27 Urvashi Nakul , Manoj Gopalakrishnan

In this work we develop and apply a path integral formulation for the microscopic degrees of freedom obeying stochastic differential equations to an active Brownian particle (ABP) trapped in a harmonic potential. The formalism allows to…

软凝聚态物质 · 物理学 2025-10-01 Carsten Littek , Mike Brandt , Falko Ziebert

The present work analyzes stationary distributions of active Brownian particles in a harmonic trap. Generally, obtaining stationary distributions for this system is non-trivial, and up to date no exact expressions are available. In this…

统计力学 · 物理学 2023-12-12 Derek Frydel

We study the position distribution of a single active Brownian particle (ABP) on the plane. We show that this distribution has a compact support, the boundary of which is an expanding circle. We focus on a short-time regime and employ the…

统计力学 · 物理学 2020-08-19 Satya N. Majumdar , Baruch Meerson

We solve the time-dependent Fokker-Planck equation for a two-dimensional active Brownian particle exploring a circular region with an absorbing boundary. Using the passive Brownian particle as basis states and dealing with the activity as a…

统计力学 · 物理学 2023-06-23 Francesco Di Trapani , Thomas Franosch , Michele Caraglio

In this work, we report a new method to simulate active Brownian particles (ABPs) in molecular dynamics (MD) simulations. Immersed in a fluid, each ABP consists of a head particle and a spherical phantom region of fluid where the flagellum…

软凝聚态物质 · 物理学 2019-02-15 Liya Wang , Xinpeng Xu , Zhigang Li , Tiezheng Qian

We study the two-dimensional overdamped motion of an active particle whose orientational dynamics is subject to fractional Brownian noise, whereas its position is affected by self-propulsion and Brownian fluctuations. From a Langevin-like…

统计力学 · 物理学 2020-07-21 Juan Ruben Gomez-Solano , Francisco J. Sevilla

We consider an active Brownian particle in a $d$-dimensional harmonic trap, in the presence of translational diffusion. While the Fokker-Planck equation can not in general be solved to obtain a closed form solution of the joint distribution…

统计力学 · 物理学 2021-12-23 Debasish Chaudhuri , Abhishek Dhar

We study the stationary states of an active Brownian particle (ABP) and run-and-tumble particle (RTP) in two dimensional power-law potentials, in the limit where translational diffusion is negligible. The potential energy of the particle…

软凝聚态物质 · 物理学 2025-10-21 Abhik Samui , Manoj Gopalakrishnan

We study analytically the dynamics of anisotropic active Brownian particles (ABPs), and more precisely their intermediate scattering function (ISF). To this end, we develop a systematic closure scheme for the moment expansion of their…

软凝聚态物质 · 物理学 2025-10-01 Timothée Gautry , Maxime Deforet , Pierre Illien

Understanding stochastic thermodynamics of active Brownian particles (ABPs) system has been an important topic in very recent years. In this article we study a general model of active Brownian particle systems by introducing a…

统计力学 · 物理学 2022-05-11 Zhiyu Cao , Jie Su , Huijun Jiang , Zhonghuai Hou

We solve the time-dependent Fokker-Planck equation for a two-dimensional active Brownian particle exploring a rectangular domain with absorbing boundary and in the presence of a parabolic barrier along one direction. By taking those of a…

统计力学 · 物理学 2026-02-09 Michele Caraglio

We present an exact analytical study of an Active Brownian Particle (ABP) subject to both position and orientation stochastic resetting in a two-dimensional harmonic trap. Utilizing a Fokker-Planck-based renewal approach, we derive the…

统计力学 · 物理学 2025-08-21 Amir Shee

The diffusion of chiral active Brownian particles in three-dimensional space is studied analytically, by consideration of the corresponding Fokker-Planck equation for the probability density of finding a particle at position…

统计力学 · 物理学 2016-12-21 Francisco J. Sevilla

We find an exact series solution for the steady-state probability distribution of a harmonically trapped active Brownian particle in two dimensions, in the presence of translational diffusion. This series solution allows us to efficiently…

统计力学 · 物理学 2020-03-04 Kanaya Malakar , Arghya Das , Anupam Kundu , K. Vijay Kumar , Abhishek Dhar

We study the position distribution of an active Brownian particle (ABP) in the presence of stochastic resetting in two spatial dimensions. We consider three different resetting protocols : (I) where both position and orientation of the…

统计力学 · 物理学 2021-04-20 Vijay Kumar , Onkar Sadekar , Urna Basu

We provide an analytical solution for the time-dependent Fokker-Planck equation for a two-dimensional active Brownian particle trapped in an isotropic harmonic potential. Using the passive Brownian particle as basis states we show that the…

软凝聚态物质 · 物理学 2022-10-11 Michele Caraglio , Thomas Franosch

We develop a perturbative framework to calculate the mean-squared displacement (MSD) of active Brownian particles (ABPs) with a finite moment of inertia. Starting from the corresponding Fokker-Planck equation, we employ a Fourier transform…

统计力学 · 物理学 2026-03-06 Lingyi Wang , Ziluo Zhang , Zhongqiang Xiong , Zhanglin Hou , Linli He , Shigeyuki Komura

This article reports the modeling of inertial rotational Brownian motion as an Ornstein-Uhlenbeck process evolving on the cotangent bundle of the rotation group, SO(3). The benefit of this approach and the use of a different…

统计力学 · 物理学 2023-03-14 Amitesh S. Jayaraman , Jikai Ye , Gregory S. Chirikjian

We characterise the steady states of a suspension of two-dimensional active brownian particles (ABPs). We calculate the steady-state probability distribution to lowest order in Peclet number. We show that macroscopic quantities can be…

统计力学 · 物理学 2023-08-09 Samuel Cameron , Majid Mosayebi , Rachel Bennett , Tanniemola B. Liverpool
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