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Spherical truncations of Coulomb interactions in standard models for water permit efficient molecular simulations and can give remarkably accurate results for the structure of the uniform liquid. However truncations are known to produce…

统计力学 · 物理学 2009-11-13 Jocelyn M. Rodgers , John D. Weeks

We consider first-order conservative systems of particles with binary Coulomb interactions in the mean-field scaling regime in dimensions $d\geq 3$. We show that if at some time, the associated sequence of empirical measures converges in a…

偏微分方程分析 · 数学 2020-10-21 Matthew Rosenzweig

We examine in detail the theoretical underpinnings of previous successful applications of local molecular field (LMF) theory to charged systems. LMF theory generally accounts for the averaged effects of long-ranged components of the…

统计力学 · 物理学 2009-11-13 Jocelyn M. Rodgers , John D. Weeks

Coulomb interactions are present in a wide variety of all-atom force fields. Spherical truncations of these interactions permit fast simulations but are problematic due to their incorrect thermodynamics. Herein we demonstrate that simple…

统计力学 · 物理学 2015-05-14 Jocelyn M. Rodgers , John D. Weeks

Structural and thermodynamic properties of ionic fluids are related to those of a simpler ``mimic'' system with short ranged intermolecular interactions in a spatially varying effective field by use of Local Molecular Field (LMF) theory,…

统计力学 · 物理学 2007-05-23 Yng-gwei Chen , Charanbir Kaur , John D. Weeks

Effective attraction between like-charged walls mediated by counterions is studied using local molecular field (LMF) theory. Monte Carlo simulations of the "mimic system'' given by LMF theory, with short-ranged "Coulomb core" interactions…

统计力学 · 物理学 2009-11-11 Jocelyn M. Rodgers , Charanbir Kaur , Yng-Gwei Chen , John D. Weeks

The self-consistent mean-field (SCMF) theory describes many properties of the ground state and excited states of the atomic nucleus, such as masses, radii, deformations and giant resonance energies. SCMF models are based on the independent…

核理论 · 物理学 2014-08-05 Marco Brenna

The use of effective local Coulomb interactions that are dynamical, that is, frequency-dependent, is an efficient tool to describe the effect of long-range Coulomb interactions and screening thereof in solids. The dynamical character of the…

强关联电子 · 物理学 2015-12-29 Silke Biermann , Ambroise van Roekeghem

We study the charge-density dynamics within the two-dimensional extended Hubbard model in the presence of long-range Coulomb interaction across the metal-insulator transition point. To take into account strong correlations we start from…

强关联电子 · 物理学 2014-12-24 E. G. C. P. van Loon , H. Hafermann , A. I. Lichtenstein , A. N. Rubtsov , M. I. Katsnelson

We develop a general formalism to investigate the effect of quenched fixed charge disorder on effective electrostatic interactions between charged surfaces in a one-component (counterion-only) Coulomb fluid. Analytical results are…

软凝聚态物质 · 物理学 2009-11-11 Ali Naji , Rudolf Podgornik

We present a comparison of methods for treating the electrostatic interactions of finite, isolated systems within periodic boundary conditions (PBCs), within Density Functional Theory (DFT), with particular emphasis on linear-scaling (LS)…

计算物理 · 物理学 2011-12-07 N. D. M. Hine , J. Dziedzic , P. D. Haynes , C. K. Skylaris

We propose a simplified version of local molecular field (LMF) theory to treat Coulomb interactions in simulations of ionic fluids. LMF theory relies on splitting the Coulomb potential into a short-ranged part that combines with other…

统计力学 · 物理学 2009-11-13 Natalia A. Denesyuk , John D. Weeks

The strong-coupling perturbation theory (SCPT) for correlated electron systems is extended to the case of full Coulomb interaction. The Coulomb mechanism of the orbital polarization is discussed and attention is paid to the importance of…

强关联电子 · 物理学 2007-05-23 I. Sandalov , U. Lundin , O. Eriksson

The iron-sulfur system is important for planetary interiors and is intensely studied, particularly for better understanding of the cores of Mars and Earth. Yet, there is a paradox about high-pressure stability of FeS: ab initio global…

强关联电子 · 物理学 2018-10-03 A. O. Shorikov , V. V. Roizen , A. R. Oganov , V. I. Anisimov

We outline the qualitatively different physics behind charging-induced current asymmetries in molecular conductors operating in the weakly interacting self-consistent field (SCF) and the strongly interacting Coulomb Blockade (CB) regimes. A…

介观与纳米尺度物理 · 物理学 2009-11-13 O. D. Miller , B. Muralidharan , N. Kapur , A. W. Ghosh

Polarizable particle systems, including charged colloids, polarizable ions, biomolecular assemblies, and soft nanomaterials, can exhibit contact electrostatic interactions that depart strongly from Coulomb behavior when dielectric mismatch…

软凝聚态物质 · 物理学 2026-05-13 Yanyu Duan , Zecheng Gan

Renormalization of the Coulomb interaction in layered metals results in a strongly anisotropic plasma mode with low frequencies for small components of wave vector in the in-plane direction. Interaction of electrons with this mode was found…

超导电性 · 物理学 2007-05-23 S. N. Artemenko , S. V. Remizov

Application of the magnetic field parallel to the plane of the graphene sheet leads to the formation of electron- and hole-like Fermi surfaces. Such situation is shown to be unstable with respect to the formation of an excitonic condensate…

介观与纳米尺度物理 · 物理学 2012-04-10 I. L. Aleiner , D. E. Kharzeev , A. M. Tsvelik

The electrostatic interaction between two non-identical, moderately charged colloids situated in close proximity of each other at a fluid interface is studied. By resorting to a well-justified model system, this problem is analytically…

软凝聚态物质 · 物理学 2018-04-30 Arghya Majee , Timo Schmetzer , Markus Bier

Consistency with the Maxwell equations determines how matter must be coupled to the electro-magnetic field (EMF) within the minimal coupling scheme. Specifically, if the Hamiltonian includes just a short-range repulsion among the conduction…

强关联电子 · 物理学 2020-03-11 Jan Skolimowski , Adriano Amaricci , Michele Fabrizio
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