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Steady state dynamics of clustering, long range order, and inelastic collapse are experimentally observed in vertically shaken granular monolayers. At large vibration amplitudes, particle correlations show only short range order like…

软凝聚态物质 · 物理学 2009-10-31 J. S. Olafsen , J. S. Urbach

We study phase separation and transient gelation in a mixture consisting of polydisperse colloids and non-adsorbing polymers, where the ratio of the average size of the polymer to that of the colloid is approximately 0.063. Unlike what has…

软凝聚态物质 · 物理学 2011-06-23 S. M. Liddle , T. Narayanan , W. C. K. Poon

Colloidal clusters consist of small numbers of colloidal particles bound by weak, short-range attractions. The equilibrium probability of observing a cluster in a particular geometry is well-described by a statistical mechanical model…

软凝聚态物质 · 物理学 2018-10-03 Ellen D. Klein , Rebecca W. Perry , Vinothan N. Manoharan

Context: Star clusters form within giant molecular clouds that are strongly altered by the feedback action of the massive stars, but the cluster still remains embedded in a dense, highly turbulent medium and interactions with ambient…

星系天体物理 · 物理学 2022-11-16 Paolo Suin , Steven N. Shore , Václav Pavlík

We study a model in which particles interact with short-ranged attractive and long-ranged repulsive interactions, in an attempt to model the equilibrium cluster phase recently discovered in sterically stabilized colloidal systems in the…

软凝聚态物质 · 物理学 2009-11-10 Francesco Sciortino , Stefano Mossa , Emanuela Zaccarelli , Piero Tartaglia

In this paper, we study thermodynamics of the cluster of galaxies under the effect of dynamical dark energy. We evaluate the configurational integral for interacting system of galaxies in an expanding universe by including the effects…

广义相对论与量子宇宙学 · 物理学 2017-04-21 Behnam Pourhassan , Sudhaker Upadhyay , Mir Hameeda , Mir Faizal

We study the short time properties of a two-dimensional film growth model in which incident particles execute advective-diffusive motion with a vertical step followed by $D$ horizontal steps. The model represents some features of the…

统计力学 · 物理学 2014-09-10 T. J. Oliveira , F. D. A. Aarao Reis

Coagulation and fragmentation (CF) is a fundamental process by which particles attach to each other to form clusters while existing clusters break up into smaller ones. It is a ubiquitous process that plays a key role in many physical and…

统计力学 · 物理学 2020-12-22 Farid Manuchehrfar , Wei Tian , Tom Chou , Jie Liang

Active colloid clustering is central to understanding non-equilibrium self-organization, with implications for programmable active materials and synthetic or biological assemblies. While most prior studies have focused on dimers or small…

We consider a model of galaxy clusters in which the hot gas is in hydrostatic equilibrium and maintains energy balance between radiative cooling and heating by thermal conduction. We analyze the thermal stability of the gas using a…

天体物理学 · 物理学 2009-11-07 Woong-Tae Kim , Ramesh Narayan

We have developed a method for extracting equilibrium observables from non-equilibrium simulations by rapidly changing the temperature and recording the subsequent evolution of the Polyakov loop. Both nucleation and spinodal decomposition…

高能物理 - 格点 · 物理学 2007-05-23 Travis R. Miller , Michael C. Ogilvie

An extended polymer collapses to form a globule when subjected to a quench below the collapse transition temperature. The process begins with the formation of clusters of monomers or ``pearls''. The nascent clusters merge, resulting in…

软凝聚态物质 · 物理学 2026-03-12 Suman Majumder , Saikat Chakraborty

The onset of polar flocking in active matter is discontinuous, akin to gas-liquid phase transitions, except that the steady state exhibits microphase separation into polar clusters. While these features have been observed in theoretical…

软凝聚态物质 · 物理学 2021-03-31 Lorenz Huber , Timo Krüger , Erwin Frey

By means of molecular dynamics, we study a model system for colloidal suspensions where the interaction is based on a competition between attraction and repulsion. At low temperatures the relaxation time $\tau$ first increases as a power…

软凝聚态物质 · 物理学 2009-11-10 A. de Candia , E. Del Gado , A. Fierro , N. Sator , A. Coniglio

We report the formation of stable nanoparticle-polymer clusters obtained by electrostatic complexation. The nanoparticles placed under scrutiny are nanoceria (CeO2) coated by short poly(acrylic acid) moieties, whereas the polymers are…

材料科学 · 物理学 2010-02-11 J. Fresnais , C. Lavelle , J. -F. Berret

We study the phase behavior of colloidal suspensions the solvents of which are considered to be binary liquid mixtures undergoing phase segregation. We focus on the thermodynamic region close to the critical point of the accompanying…

软凝聚态物质 · 物理学 2015-06-03 T. F. Mohry , A. Maciołek , S. Dietrich

We study the formation of a colloidal gel by means of Molecular Dynamics simulations of a model for colloidal suspensions. A slowing down with gel-like features is observed at low temperatures and low volume fractions, due to the formation…

软凝聚态物质 · 物理学 2009-11-13 A. Fierro , E. Del Gado , A. de Candia , A. Coniglio

The control of the thermocapillary assembly of colloidal particle clusters is important for a variety of applications, including the creation of photonic crystals for microelectronics and optoelectronics, membrane formation for…

软凝聚态物质 · 物理学 2026-03-20 Kristina N. Kondrashova , Konstantin S. Kolegov , Irina V. Vodolazskaya

Differences in activities in colloidal particles are sufficient to drive phase separation between active and passive (or less active) particles, even if they have only excluded volume interactions. In this paper, we study the phase…

软凝聚态物质 · 物理学 2020-05-27 Efe Ilker , Jean-François Joanny

We study the self-similar behavior of the exchange-driven growth model, which describes a process in which pairs of clusters, consisting of an integer number of monomers, interact through the exchange of a single monomer. The rate of…

偏微分方程分析 · 数学 2021-03-18 Constantin Eichenberg , André Schlichting