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相关论文: Self Consistent Molecular Field Theory for Packing…

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The coupling-parameter method, whereby an extra particle is progressively coupled to the rest of the particles, is applied to the sticky-hard-sphere fluid to obtain its equation of state in the so-called chemical-potential route ($\mu$…

软凝聚态物质 · 物理学 2014-04-15 René D. Rohrmann , Andrés Santos

A new framework is presented for evaluating the performance of self-consistent field methods in Kohn-Sham density functional theory. The aims of this work are two-fold. First, we explore the properties of Kohn-Sham density functional theory…

计算物理 · 物理学 2019-07-18 Nick Woods , Phil Hasnip , Mike Payne

In this paper, we consider the field model for complex ionic fluids with an energy variational structure, and analyze the well-posedness to this model with regularized kernels. Furthermore, we deduce the estimate of the maximal density…

偏微分方程分析 · 数学 2020-10-13 Jian-Guo Liu , Jinhuan Wang , Yu Zhao , Zhennan Zhou

Following the work of Leutheusser [Physica A 127, 667 (1984)], the solution to the Percus-Yevick equation for a seven-dimensional hard-sphere fluid is explicitly found. This allows the derivation of the equation of state for the fluid…

统计力学 · 物理学 2015-06-29 M. Robles , M. Lopez de Haro , A. Santos

A Symplectic Effective Field Theory that unveils the observed emergence of symplectic symmetry in atomic nuclei is advanced. Specifically, starting from a simple extension of the harmonic-oscillator Lagrangian, an effective field theory…

核理论 · 物理学 2022-07-20 D. Kekejian , J. P. Draayer , V. I. Mokeev , C. D. Roberts

We consider classically scale-invariant theories with non-minimally coupled scalar fields, where the Planck mass and the hierarchy of physical scales are dynamically generated. The classical theories possess a fixed point, where scale…

高能物理 - 唯象学 · 物理学 2017-05-03 K. Kannike , M. Raidal , C. Spethmann , H. Veermäe

We study the dynamics of a cosmological model with a perfect fluid and $\mathcal{N}$ fields on a hyperbolic field space interacting via a symmetric potential. We list all late-time solutions, investigate their stability and briefly discuss…

广义相对论与量子宇宙学 · 物理学 2021-06-01 Perseas Christodoulidis , Andronikos Paliathanasis

We propose an improved effective-medium theory to obtain the concentration dependence of the viscosity of particle suspensions at arbitrary volume fractions. Our methodology can be applied, in principle, to any particle shape as long as the…

软凝聚态物质 · 物理学 2010-06-01 I. Santamaria-Holek , Carlos I. Mendoza

The homogeneous cosmological models with a Liouville scalar field are investigated in classical and quantum context of Wheeler-DeWitt geometrodynamics. In the quantum case of quintessence field with potential unbounded from below and…

高能物理 - 理论 · 物理学 2018-10-16 Alexander A. Andrianov , Chen Lan , Oleg O. Novikov , Yi-Fan Wang

Polymer self-consistent field theory techniques are used to find radial electron densities and total binding energies for isolated atoms. Quantum particles are modelled as Gaussian threads with ring-polymer architecture in a four…

量子物理 · 物理学 2022-11-30 Russell B. Thompson

We consider a system of partial differential equations describing mass transport in a multicomponent isothermal compressible fluid. The diffusion fluxes obey the Fick-Onsager or Maxwell-Stefan closure approach. Mechanical forces result into…

偏微分方程分析 · 数学 2020-01-27 Dieter Bothe , Pierre-Etienne Druet

A new computational method is presented for study suspensions of charged soft particles undergoing fluctuating hydrodynamic and electrostatic interactions. The proposed model is appropriate for polymers, proteins and porous particles…

软凝聚态物质 · 物理学 2015-04-14 Juan P. Hernandez-Ortiz , Juan J. de Pablo

The classical sphere packing problem asks for the best (infinite) arrangement of non-overlapping unit balls which cover as much space as possible. We define a generalized version of the problem, where we allow each ball a limited amount of…

计算几何 · 计算机科学 2014-01-03 Mabel Iglesias-Ham , Michael Kerber , Caroline Uhler

The mesoscopic field theory for ionic systems [A. Ciach and G. Stell, J. Mol. Liq. 87, 255 (2000)] is extended to the system with charged boundaries. A very simple expression for the excess grand potential functional of the charge density…

软凝聚态物质 · 物理学 2018-11-20 Alina Ciach

It is shown how quantum field theory at finite temperature can be used to set up self-consistent and gauge invariant equations for cosmological perturbations sustained by an ultrarelativistic plasma. While in the collisionless case, the…

广义相对论与量子宇宙学 · 物理学 2016-08-31 Anton K. Rebhan

A closed set of equations for the evolution of linear perturbations of homogeneous, isotropic cosmological models can be obtained in various ways. The simplest approach is to assume a macroscopic equation of state, e.g.\ that of a perfect…

广义相对论与量子宇宙学 · 物理学 2009-10-22 Anton K. Rebhan , Dominik J. Schwarz

For the problem of molecular solvation, formulated as a liquid submitted to the external potential field created by a molecular solute of arbitrary shape dissolved in that solvent, we draw a connection between the Gaussian field theory…

化学物理 · 物理学 2017-10-04 V. Sergiievskyi , M. Levesque , B. Rotenberg , D. Borgis

Because currently the most popular method of calculating plasma self-consistent fields is an incomplete method which, strictly speaking, is not suitable to scientific investigation, we develop this method into be a complete reliable basic…

等离子体物理 · 物理学 2010-08-16 Hai Lin

Quasi-equilibrium approximation is a widely used closure approximation approach for model reduction with applications in complex fluids, materials science, etc. It is based on the maximum entropy principle and leads to thermodynamically…

数值分析 · 数学 2021-10-19 Shan Jiang , Haijun Yu

In this paper, a lattice Boltzmann equation (LBE) model is proposed for binary fluids based on a quasi-incompressible phase-field model [J. Shen et al, Comm. Comp. Phys. 13, 1045 (2013)]. Compared with the other incompressible LBE models…

流体动力学 · 物理学 2016-05-04 Kang Yang , Zhaoli Guo