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相关论文: Equation of State of Four- and Five-Dimensional Ha…

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The interest in the description of the properties of fluids of restricted dimensionality is growing for theoretical and practical reasons. In this work, we have firstly developed an analytical expression for the Helmholtz free energy of the…

化学物理 · 物理学 2018-05-23 V. M. Trejos , A. Santos , F. Gámez

The ground state of solid $^4$He is studied using the diffusion Monte Carlo method and a new trial wave function able to describe the supersolid. The new wave function is symmetric under the exchange of particles and reproduces the…

其他凝聚态物理 · 物理学 2009-11-13 C. Cazorla , G. E. Astrakharchik , J. Casulleras , J. Boronat

Liquid-state theory, computer simulation, and numerical optimization are used to investigate the extent to which positional correlations of a hard-sphere fluid--as characterized by the radial distribution function and the two-particle…

软凝聚态物质 · 物理学 2016-03-23 Ryan B. Jadrich , Beth A. Lindquist , Jonathan A. Bollinger , Thomas M. Truskett

The chemical potential of a hard-sphere fluid can be expressed in terms of the contact value of the radial distribution function of a solute particle with a diameter varying from zero to that of the solvent particles. Exploiting the…

统计力学 · 物理学 2012-09-24 Andrés Santos

The analytical solution of the recently proposed ideal chain polymer mean-spherical approximation (Yu.Kalyuzhnyi, Mol.Phys., 94, 735(1998)) is presented for the multicomponent mixture of charged hard-sphere linear chain flexible molecules.…

凝聚态物理 · 物理学 2009-11-07 Yu. V. Kalyuzhnyi , P. T. Cummings

A correlation between maxima in virial coefficients (Bn), and "kissing" numbers for hard hyper-spheres up to dimension D=5, indicates a virial equation and close-packing relationship. Known virial coefficients up to B7, both for hard…

统计力学 · 物理学 2011-05-23 Leslie V. Woodcock

We present a tethered Monte Carlo simulation of the crystallization of hard spheres. Our method boosts the traditional umbrella sampling to the point of making practical the study of constrained Gibb's free energies depending on several…

统计力学 · 物理学 2012-05-08 L. A. Fernandez , V. Martin-Mayor , B. Seoane , P. Verrocchio

We characterize a system of hard spheres with a simple collision rule that breaks time reversal symmetry, but conserves energy. The collisions lead to an a-chiral, isotropic, and homogeneous stationary state, whose properties are determined…

统计力学 · 物理学 2022-09-21 Niklas Grimm , Annette Zippelius , Matthias Fuchs

A full viscous quantum hydrodynamic system for particle density, current density, energy density and electrostatic potential coupled with a Poisson equation in one dimensional bounded intervals is studied. First, the existence and…

偏微分方程分析 · 数学 2023-07-03 Xiaoying Han , Yuming Qin , Wenlong Sun

A novel formulation of second-order relativistic viscous fluid dynamics based on the effective Boltzmann equation for quasi-particles with medium-dependent masses is briefly reviewed.~The evolution equations for the shear and bulk…

核理论 · 物理学 2017-08-07 Radoslaw Ryblewski

A recently derived method [R. D. Rohrmann and A. Santos, Phys. Rev. E. {\bf 76}, 051202 (2007)] to obtain the exact solution of the Percus-Yevick equation for a fluid of hard spheres in (odd) $d$ dimensions is used to investigate the…

软凝聚态物质 · 物理学 2008-07-05 Rene D. Rohrmann , Miguel Robles , Mariano Lopez de Haro , Andres Santos

A recent mode coupling theory of higher-order correlation functions is tested on a simple hard-sphere fluid system at intermediate densities. Multi-point and multi-time correlation functions of the densities of conserved variables are…

统计力学 · 物理学 2009-11-07 Ramses van Zon , Jeremy Schofield

Determining fluid-crystal phase boundaries via direct-coexistence methods can be challenging due to the fact that the simulation box can introduce crystal strain. Recently, a direct-coexistence approach was developed which allows one to…

软凝聚态物质 · 物理学 2026-04-21 Rinske M. Alkemade , Alessandro Salo , Laura Filion , Frank Smallenburg

We simulate by lattice Boltzmann the steady shearing of a binary fluid mixture with full hydrodynamics in three dimensions. Contrary to some theoretical scenarios, a dynamical steady state is attained with finite correlation lengths in all…

统计力学 · 物理学 2009-11-13 K. Stratford , J. -C. Desplat , P. Stansell , M. E. Cates

We derive the finite-temperature equation of state of dark matter superfluids with 2-body and 3-body contact interactions. The latter case is relevant to a recently proposed model of dark matter superfluidity that unifies the collisionless…

高能物理 - 理论 · 物理学 2019-06-05 Anushrut Sharma , Justin Khoury , Tom Lubensky

Typical multispecies compressible Navier-Stokes computations employ conservative equations for mass fraction transport. Upwind discretisations of these governing equations produce spurious pressure oscillations at diffuse contact surfaces…

计算物理 · 物理学 2018-06-28 Ben Thornber , Michael Groom , David Youngs

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

An approach to obtain the structural properties of additive binary hard-sphere mixtures is presented. Such an approach, which is a nontrivial generalization of the one recently used for monocomponent hard-sphere fluids [S. Pieprzyk, A. C.…

软凝聚态物质 · 物理学 2020-01-20 S. Pieprzyk , A. C. Brańka , S. B. Yuste , A. Santos , M. López de Haro

A novel stochastic fluid model is proposed with non-ideal structure factor consistent with compressibility, and adjustable transport coefficients. This Stochastic Hard Sphere Dynamics (SHSD) algorithm is a modification of the Direct…

统计力学 · 物理学 2009-11-13 Aleksandar Donev , Berni J. Alder , Alejandro L. Garcia

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