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In microfluidic devices, inertia drives particles to focus on a finite number of inertial focusing streamlines. Particles on the same streamline interact to form one-dimensional microfluidic crystals (or "particle trains"). Here we develop…

流体动力学 · 物理学 2018-09-12 Kaitlyn Hood , Marcus Roper

Applications of active particles require a method for controlling their dynamics. While this is typically achieved via direct interventions, indirect interventions based, e.g., on an orientation-dependent self-propulsion speed of the…

软凝聚态物质 · 物理学 2022-10-25 Stephan Bröker , Jens Bickmann , Michael te Vrugt , Michael E. Cates , Raphael Wittkowski

The ordering of N equally charged particles (-e) moving in two dimensions and confined by a Coulomb potential, resulting from a displaced positive charge Ze is discussed. This is a classical model system for atoms. We obtain the…

强关联电子 · 物理学 2007-05-23 W. P. Ferreira , A. Matulis , G. A. Farias , F. M. Peeters

We simulated irreversible aggregation of non-interacting particles and of particles interacting via repulsive and attractive potentials explicitly implementing the rotational diffusion of aggregating clusters. Our study confirms that the…

软凝聚态物质 · 物理学 2019-03-26 Swetlana Jungblut , Jan-Ole Joswig , Alexander Eychmüller

The generation of entanglement produced by a local potential interaction in a bipartite system is investigated. The degree of entanglement is contrasted with the underlying classical dynamics for a Rydberg molecule (a charged particle…

量子物理 · 物理学 2007-05-23 M. Lombardi , A. Matzkin

Clusters of galaxies are embedded in halos of optically thin, gravitationally stratified, weakly magnetized plasma at the system's virial temperature. Due to radiative cooling and anisotropic heat conduction, such intracluster medium (ICM)…

宇宙学与河外天体物理 · 物理学 2015-07-22 C. Nipoti , L. Posti , S. Ettori , M. Bianconi

The dynamics and spontaneous organization of coupled particles is a classic problem in modeling and applied mathematics. Here we examine the behavior of particles coupled by the Ricker potential, exhibiting finite local repulsion…

适应与自组织系统 · 物理学 2025-11-21 David Sabin-Miller , Daniel M. Abrams

Non-aligning self-propelled particles with purely repulsive excluded volume interactions undergo athermal motility-induced phase separation into a dilute gas and a dense cluster phase. Here, we use enhanced sampling computational methods…

软凝聚态物质 · 物理学 2016-10-05 Gabriel S. Redner , Caleb G. Wagner , Aparna Baskaran , Michael F. Hagan

The equilibrium properties of a system of passive diffusing particles in an external magnetic field are unaffected by the Lorentz force. In contrast, active Brownian particles exhibit steady-state phenomena that depend on both the strength…

统计力学 · 物理学 2020-10-06 Iman Abdoli , Abhinav Sharma

Repulsive self-propelled particles tend to cluster, leading to Motility-Induced Phase Separation (MIPS). By analogy with equilibrium phase separation, the onset of MIPS has been associated with a transition to effective attraction between…

In this work we show that a relativistic spinning particle can be described at the classical and the quantum level as being composed of two physical constituents which are entangled and separated by a fixed distance. This bilocal model for…

高能物理 - 理论 · 物理学 2017-05-17 Trevor Rempel , Laurent Freidel

We consider a Hamiltonian system made of $N$ classical particles moving in two dimensions, coupled via an {\it infinite-range interaction} gauged by a parameter $A$. This system shows a low energy phase with most of the particles trapped in…

统计力学 · 物理学 2009-11-07 Mickael Antoni , Stefano Ruffo , Alessandro Torcini

A growing number of dynamical situations involve the coupling of particles or singularities with physical waves. In principle these situations are very far from the wave-particle duality at quantum scale where the wave is probabilistic by…

量子物理 · 物理学 2014-02-07 Stéphane Perrard , Matthieu Labousse , Marc Miskin , Emmanuel Fort , Yves Couder

$O(\hbar)$ effects that modify the classical orbit of a charged particle are described for the case of a classical spin-1/2 particle moving in a constant magnetic field, using a manifestly covariant formalism reported previously. It is…

acc-phys · 物理学 2008-02-03 Patrick L. Nash

We explore the scattering dynamics of classical Coulomb-interacting clusters of ions confined to a helical geometry. Ion clusters of equally charged particles constrained to a helix can form many-body bound states, i.e. they exhibit stable…

经典物理 · 物理学 2024-12-23 Ansgar Siemens , Peter Schmelcher

We examine binary mixtures of superparamagnetic colloidal particles confined to a two-dimensional water-air interface both by real-space experiments and Monte-Carlo computer simulations at high coupling strength. In the simulations, the…

软凝聚态物质 · 物理学 2015-05-13 L Assoud , F Ebert , P Keim , R Messina , G Maret , H Löwen

The transport of interacting Brownian particles in a periodic asymmetric (ratchet) substrate is studied numerically. In a zero-temperature regime, the system behaves as a reversible step motor, undergoing multiple sign reversals of the…

统计力学 · 物理学 2008-12-31 Rogério M. da Silva , Clécio C. de Souza Silva , Sérgio Coutinho

We use Monte-Carlo simulations to study aging phenomena and the occurence of spinglass phases in systems of single-domain ferromagnetic nanoparticles under the combined influence of dipolar interaction and anisotropy energy, for different…

无序系统与神经网络 · 物理学 2009-11-13 Stefanie Russ , Armin Bunde

We investigate the dynamic stability of inspiraling neutron stars by performing multiple-orbit numerical relativity simulations of the binary neutron star inspiral process. By introducing eccentricities in the orbits of the neutron stars,…

广义相对论与量子宇宙学 · 物理学 2008-11-26 Mark Miller

This study theoretically considers the motion of N identical inelastic particles between two oscillating walls. The particles' average energy increases abruptly at certain critical filling fractions, wherein the system changes into a…

数据分析、统计与概率 · 物理学 2011-01-31 Fei Fang Chung , Sy-Sang Liaw , Wei Chun Chang