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Brownian dynamics of colloidal particles on complex surfaces has found important applications in diverse physical, chemical and biological processes. However, current Brownian dynamics simulation algorithms mostly work for relatively simple…

软凝聚态物质 · 物理学 2019-11-26 Yuguang Yang , Bo Li

Model-based design of experiments (MBDOE) is essential for efficient parameter estimation in nonlinear dynamical systems. However, conventional adaptive MBDOE requires costly posterior inference and design optimization between each…

机器学习 · 统计学 2026-03-25 Arno Strouwen , Sebastian Micluţa-Câmpeanu

We analyze the dynamics of Brownian ratchets in a confined environment. The motion of the particles is described by a Fick-Jakobs kinetic equation in which the presence of boundaries is modeled by means of an entropic potential. The cases…

软凝聚态物质 · 物理学 2013-05-23 Paolo Malgaretti , Ignacio Pagonabarraga , J. Miguel Rubi

We discuss recent advances in developing a mode-coupling theory of the glass transition (MCT) of two-dimensional systems of active Brownian particles (ABP). We specifically discuss the case of a single ABP tracer in a glass-forming passive…

软凝聚态物质 · 物理学 2020-12-15 Julian Reichert , Leon Granz , Thomas Voigtmann

Brownian Dynamics algorithms are widely used for simulating soft-matter and biochemical systems. In recent times, their application has been extended to the simulation of coarse-grained models of cellular networks in simple organisms. In…

定量方法 · 定量生物学 2009-11-13 Marco J. Morelli , Pieter Rein ten Wolde

We investigate a trapping mechanism for passive Brownian particles based on mixtures with self-propelled dipolar colloids. Active dipoles, whose magnetic moment is oriented perpendicularly to their propulsion direction, spontaneously form…

软凝聚态物质 · 物理学 2025-09-18 Arnaud Compagnie , Nicolas Vandewalle , Eric Opsomer

The behavior of materials is influenced by a wide range of phenomena occurring across various time and length scales. To better understand the impact of microstructure on macroscopic response, multiscale modeling strategies are essential.…

The pursuit of long-term autonomy mandates that machine learning models must continuously adapt to their changing environments and learn to solve new tasks. Continual learning seeks to overcome the challenge of catastrophic forgetting,…

机器学习 · 计算机科学 2024-07-25 Jack Foster , Alexandra Brintrup

Hamiltonian learning protocols are essential tools to benchmark quantum computers and simulators. Yet rigorous methods for time-dependent Hamiltonians and Lindbladians remain scarce despite their wide use. We close this gap by learning the…

量子物理 · 物理学 2025-10-10 Daniel Stilck França , Tim Möbus , Cambyse Rouzé , Albert H. Werner

We combine power functional theory and machine learning to study non-equilibrium overdamped many-body systems of colloidal particles at the level of one-body fields. We first sample in steady state the one-body fields relevant for the…

软凝聚态物质 · 物理学 2024-10-16 Toni Zimmerman , Florian Sammüller , Sophie Hermann , Matthias Schmidt , Daniel de las Heras

A novel approach to account for hard-body interactions in (overdamped) Brownian dynamics simulations is proposed for systems with non-vanishing force fields. The scheme exploits the analytically known transition probability for a Brownian…

计算物理 · 物理学 2012-11-07 Hans Behringer , Ralf Eichhorn

We study the consequences of adopting the memory dependent, non-Markovian, physics with the memory-less over-damped approximation usually employed to investigate Brownian particles. Due to the finite correlation time scale associated with…

统计力学 · 物理学 2019-02-05 Eduardo dos S. Nascimento , Welles A. M. Morgado

Robotic systems for manipulation tasks are increasingly expected to be easy to configure for new tasks. While in the past, robot programs were often written statically and tuned manually, the current, faster transition times call for…

机器人学 · 计算机科学 2023-10-03 Jonathan Styrud , Matthias Mayr , Erik Hellsten , Volker Krueger , Christian Smith

In the high persistence regime of non-inertial active Brownian particles (ABP), polarization becomes a relevant dynamical field. Based on a recently proposed kinetic description for ABP, we derive Navier-Stokes-like equations for the…

软凝聚态物质 · 物理学 2025-10-21 Martín Pinto-Goldberg , Rodrigo Soto

To address the impact of electron correlations in the linear and non-linear response regimes of interacting many-electron systems exposed to time-dependent external fields, we study one-dimensional (1D) systems where the interacting problem…

其他凝聚态物理 · 物理学 2011-08-17 N. Helbig , J. I. Fuks , I. V. Tokatly , H. Appel , E. K. U. Gross , A. Rubio

We use computer simulations to study the onset of collective motion in systems of interacting active particles. Our model is a swarm of active Brownian particles with internal energy depot and interactions inspired by the dissipative…

统计力学 · 物理学 2013-05-31 Vladimir Lobaskin , Maksym Romenskyy

One of the key limitations of Molecular Dynamics simulations is the computational intractability of sampling protein conformational landscapes associated with either large system size or long timescales. To overcome this bottleneck, we…

生物大分子 · 定量生物学 2018-07-09 Zahra Shamsi , Kevin J. Cheng , Diwakar Shukla

The brain must extract behaviorally relevant latent variables from the signals streamed by the sensory organs. Such latent variables are often encoded in the dynamics that generated the signal rather than in the specific realization of the…

神经元与认知 · 定量生物学 2021-10-07 Tiberiu Tesileanu , Siavash Golkar , Samaneh Nasiri , Anirvan M. Sengupta , Dmitri B. Chklovskii

Active Brownian particles (ABPs) serve as a minimal model of active matter systems. When ABPs are sufficiently persistent, they undergo a liquid-gas phase separation and, in the presence of obstacles, accumulate around them, forming a…

软凝聚态物质 · 物理学 2025-10-16 Pablo Perez-Bastías , Rodrigo Soto

Backpropagation (BP) has been pivotal in advancing machine learning and remains essential in computational applications and comparative studies of biological and artificial neural networks. Despite its widespread use, the implementation of…

神经元与认知 · 定量生物学 2025-04-15 Xinhao Fan , Shreesh P Mysore