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Active particles may happen to be confined in channels so narrow that they cannot overtake each other (Single File conditions). This interesting situation reveals nontrivial physical features as a consequence of the strong inter-particle…

统计力学 · 物理学 2015-06-19 Emanuele Locatelli , Fulvio Baldovin , Enzo Orlandini , Matteo Pierno

A new method, dual-space cluster expansion, is proposed to study classical phases transitions in the continuum. It relies on replacing the particle positions as integration variables by the momenta of the relative displacements of particle…

数学物理 · 物理学 2025-11-18 Andras Suto

When ferromagnetic particles are suspended at an interface under magnetic fields, dipole-dipole interactions compete with capillary attraction. This combination of forces has recently given promising results towards controllable…

We consider a model of the classical spinning particle in which the coadjoint orbits of the Poincare group are parametrized by two pairs of canonically conjugate four vectors, one representing the standard position and momentum variables…

高能物理 - 理论 · 物理学 2016-08-17 Trevor Rempel , Laurent Freidel

We numerically study two-dimensional athermal chiral active particles at high densities. The particles in this system perform the circular motion with frequency $\Omega$. We show that the system crystallizes at high densities even in two…

软凝聚态物质 · 物理学 2025-03-04 Yuta Kuroda , Takeshi Kawasaki , Kunimasa Miyazaki

We study melting in a two-dimensional system of classical particles with Gaussian-core interactions in disordered environments. The pure system validates the conventional two-step melting with a hexatic phase intervening between the solid…

软凝聚态物质 · 物理学 2023-08-01 Prashanti Jami , Pinaki Chaudhuri , Chandan Dasgupta , Amit Ghosal

We investigate the dynamics of a Bose-Einstein condensate of magnetic atoms in which the dipoles are rotated by an external magnetic field. The time-averaged dipole-dipole interaction between the atoms is effectively tuned by this rotation,…

量子气体 · 物理学 2020-04-14 D. Baillie , P. B. Blakie

Based on Brownian dynamics simulations we study the collective behavior of a twodimensional system of repulsively interacting colloidal particles, where each particle is propelled by a repulsive feedback force with time delay $\tau$.…

软凝聚态物质 · 物理学 2023-07-12 Robin A. Kopp , Sabine H. L. Klapp

We investigate the interplay between chirality and confinement in harmonically trapped active particles. The circular character of chiral motion combines with the radial symmetry of the potential to create distinctive non-equilibrium…

软凝聚态物质 · 物理学 2026-03-23 Hrithik Barman

Drying of particle suspensions is an ubiquitous phenomenon with many natural and practical applications. In particular, in unidirectional drying, the evaporation of the solvent induces flows which accumulate particles at the liquid/air…

软凝聚态物质 · 物理学 2017-11-21 Cécile Noirjean , Moreno Marcellini , Tom Kodger , Cécile Monteux , Sylvain Deville

We numerically examine binary-sized granular mixtures confined between two parallel walls subjected to vertical vibration using the discrete element method. For a size ratio of $3$ between large and small particles, we study the structure…

软凝聚态物质 · 物理学 2026-05-26 Fumiaki Nakai , Kiwamu Yoshii

We investigate dynamics of deformable self-propelled particles with a repulsive interaction whose magnitude depends on the relative direction of elongation of a pair of particles. A collective motion of the particles appears in two…

软凝聚态物质 · 物理学 2015-05-27 Yu Itino , Takahiro Ohkuma , Takao Ohta

Protoplanetary disks are gaseous systems in Keplerian rotation around young stars, known to be turbulent. They include a small fraction of dust from which planets form. In the incremental scenario for planet growth, the formation of…

地球与行星天体物理 · 物理学 2023-02-06 Fabiola Antonietta Gerosa , Héloïse Meheut , Jérémie Bec

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

We consider a two-particle system in which a particle is held fixed, and the other one rotates around the axis perpendicular to the line joining the particles centers. The rotating particle leads to a displacement of its polarization charge…

软凝聚态物质 · 物理学 2007-05-23 Jones T. K. Wan , K. W. Yu , G. Q. Gu

We study orbital inclination changes associated with the precession of a disc-planet system that occurs through gravitational interaction with a binary companion on an inclined orbit. We investigate whether this scenario can account for…

地球与行星天体物理 · 物理学 2014-02-14 M. Xiang-Gruess , J. C. B. Papaloizou

In the field of liquid crystals, it is well-known that rod-like molecules interacting via long-range attractive interactions or short-range repulsive potentials can exhibit orientational order. In this work, we are interested in what would…

软凝聚态物质 · 物理学 2022-06-01 Xiaoyu Zheng , Obeng Appiagyei Addai , Peter Palffy-Muhoray

We present an efficient method to perform overdamped Brownian dynamics simulations in external force fields and for particle interactions that include a hardcore part. The method applies to particle motion in one dimension, where it is…

统计力学 · 物理学 2026-02-23 Alexander P. Antonov , Sören Schweers , Artem Ryabov , Philipp Maass

Recent advances in cold atom experimentation suggest that studies of quantum two-dimensional melting of dipolar molecules, with dipoles aligned perpendicular to ordering plane, may be on the horizon. An intriguing aspect of this problem is…

量子气体 · 物理学 2014-04-02 Georg M. Bruun , David R. Nelson

We investigate the segregation pattern formations of strongly and weakly fluctuated Brownian particle mixtures, which are confined in spherical containers with finite volumes. We consider systems where the container restricts the motions of…

软凝聚态物质 · 物理学 2015-06-19 Akinori Awazu