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相关论文: Rescaled density expansions and demixing in hard-s…

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We study 2-dimensional binary mixtures of parallel squares as well as of disks. A recent cluster algorithm allows us to establish an entropic demixing transition between a homogeneously packed fluid phase and a demixed phase of a…

软凝聚态物质 · 物理学 2009-10-31 Arnaud Buhot , Werner Krauth

We report a molecular dynamics study of crystallization in highly asymmetric binary hard-sphere mixtures, in which the large spheres can form a crystal phase while the small ones remain disordered during the crystallization process of the…

软凝聚态物质 · 物理学 2015-05-28 Wen-Sheng Xu , Zhao-Yan Sun , Li-Jia An

We investigate phase separation of near-critical binary mixtures between parallel symmetric walls in the strong adsorption regime. We take into account the renormalization effect due to the critical fluctuations using the recent local…

软凝聚态物质 · 物理学 2013-08-21 Shunsuke Yabunaka , Ryuichi Okamoto , Akira Onuki

We study by molecular dynamics computer simulation a binary soft-sphere mixture that shows a pronounced decoupling of the species' long-time dynamics. Anomalous, power-law-like diffusion of small particles arises, that can be understood as…

统计力学 · 物理学 2013-05-29 Th. Voigtmann , J. Horbach

We numerically study the jamming transition of frictionless polydisperse spheres in three dimensions. We use an efficient thermalisation algorithm for the equilibrium hard sphere fluid and generate amorphous jammed packings over a range of…

统计力学 · 物理学 2017-10-16 Misaki Ozawa , Ludovic Berthier , Daniele Coslovich

The effective interaction between two planar walls immersed in a fluid is investigated by use of Density Functional Theory in the super-critical region of the phase diagram. A hard core Yukawa model of fluid is studied with special…

统计力学 · 物理学 2017-04-05 Pietro Anzini , Alberto Parola

A critique is presented of the frequently used Bruce-Wilding (BW) mixed-field scaling method for estimating the critical points of nonsymmetric model fluids from grand canonical simulation data. An explicit, systematic technique for…

统计力学 · 物理学 2007-05-23 Young C. Kim , Michael E. Fisher

A recently proposed rational-function approximation [Phys. Rev. E \textbf{84}, 041201 (2011)] for the structural properties of nonadditive hard spheres is applied to evaluate analytically (in Laplace space) the local density profiles of…

软凝聚态物质 · 物理学 2013-04-08 Riccardo Fantoni , Andrés Santos

In a series of publications the Cummings-Stell model (CSM), for a binary mixture of associative fluids with steric effects, has been solved analytically using the Percus-Yevick approximation (PYA). The solution consists in a square well…

统计力学 · 物理学 2009-03-24 J. F. Rojas

The available virial coefficients for the 2D hard disks model are transformed into a matrix representation of the thermodynamic potentials, which allows for an accurate description of the whole fluid phase, up to the phase transition. We…

统计力学 · 物理学 2010-08-27 Eli Eisenberg , Asher Baram

The structural properties of additive binary hard-sphere mixtures are addressed as a follow-up of a previous paper [S. Pieprzyk et al., Phys. Rev. E 101, 012117 (2020)]. The so-called rational-function approximation method and an approach…

Within the mode-coupling theory for idealized glass transitions, we study the evolution of structural relaxation in binary mixtures of hard spheres with size ratios $\delta$ of the two components varying between 0.5 and 1.0. We find two…

软凝聚态物质 · 物理学 2009-11-07 W. Götze , Th. Voigtmann

We discuss phase coexistence of polydisperse colloidal suspensions in the presence of adhesion forces. The combined effect of polydispersity and Baxter's sticky-hard-sphere (SHS) potential, describing hard spheres interacting via strong and…

统计力学 · 物理学 2009-11-11 Domenico Gazzillo , Achille Giacometti , Riccardo Fantoni

We study the motion of a rigid sphere falling in a two-layer stratified fluid under the action of gravity in the potential flow regime. Experiments at a moderate Reynolds number of approximately 20 to 450 indicate that a sphere with the…

Molecular dynamics simulations are performed to study the [100] and [111] orientations of the crystal-melt interface between an ordered two-component hard sphere with a NaCl structure and its coexisting binary hard-sphere fluid. The…

化学物理 · 物理学 2009-11-07 Rachel Sibug-Aga , Brian B. Laird

We study various manifestations of structural crossover in the properties of a binary mixture of hard-spheres. For homogeneous mixtures that are sufficiently asymmetric, there is a crossover line in the phase diagram such that for…

软凝聚态物质 · 物理学 2009-11-11 C. Grodon , M. Dijkstra , R. Evans , R. Roth

Near the thermodynamic critical point, the physical properties of binary fluids exhibit large variations in response to small temperature and concentration differences, whose effects on the onset of double-diffusive convection are reported…

流体动力学 · 物理学 2019-03-27 Zhan-Chao Hu , Stephen H. Davis , Xin-Rong Zhang

We study the thermodynamic stability of fluid-fluid phase separation in binary nonadditive mixtures of hard-spheres for moderate size ratios. We are interested in elucidating the role played by small amounts of nonadditivity in determining…

软凝聚态物质 · 物理学 2011-10-25 G. Pellicane , F. Saija , C. Caccamo , P. V. Giaquinta

We analyze the density distribution and the adsorption of solvent hard spheres in an annular slit formed by two large solute spheres or a large solute and a wall at close distances by means of fundamental measure density functional theory,…

软凝聚态物质 · 物理学 2010-09-06 V. Botan , F. Pesth , T. Schilling , M. Oettel

Integral equation of pure liquids, combined with a new "scaling approximation" based on a corresponding states treatment of pair correlation functions, is used to evaluate approximate structure factors for colloidal fluids constituted of…