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The effective Coulomb interaction between globular proteins is calculated as a function of monovalent salt concentration $c_s$, by explicit Molecular Dynamics simulations of pairs of model proteins in the presence of microscopic co and…

软凝聚态物质 · 物理学 2016-08-16 E. Allahyarov , H. Löwen , A. A. Louis , J. P. Hansen

We propose a method for quantifying charge-driven instabilities in clusters, based on equilibrium simulations under confinement at constant external pressure. This approach makes no assumptions about the mode of decay and allows different…

原子与分子团簇 · 物理学 2015-10-28 Mark A. Miller , David A. Bonhommeau , Christian P. Moerland , Sarah J. Gray , Marie-Pierre Gaigeot

The dynamics of electrons in the presence of a positive ion is considered for conditions of weak electron-electron couping but strong electron-ion coupling. The equilibrium electron density and electric field time correlation functions are…

统计力学 · 物理学 2007-05-23 James W. Dufty , Ilya V. Pogorelov , Bernard Talin , Annette Calisti

In concentrated electrolytes with asymmetric or irregular ions, such as ionic liquids and solvent-in-salt electrolytes, ion association is more complicated than simple ion-pairing. Large branched aggregates can form at significant…

Cluster formation is a fundamental aspect of the equation of state (EOS) of warm and dense nuclear matter such as can be found in supernovae (SNe). Similar matter can be studied in heavy-ion collisions (HIC). We use the experimental data of…

核理论 · 物理学 2015-05-05 Matthias Hempel , Kris Hagel , Joseph Natowitz , Gerd Röpke , Stefan Typel

We propose a generalized Debye-Huckel model from Poisson-Fermi theory to predict the mean activity coefficient of electrolytes in water-methanol mixtures with arbitrary percentage of methanol from 0 to 100%. The model applies to any number…

统计力学 · 物理学 2022-09-07 Chin-Lung Li , Shu-Yi Chou , Jinn-Liang Liu

A-statistics is defined in the context of the Lie algebra sl(n+1). Some thermal properties of A-statistics are investigated under the assumption that the particles interact only via statistical interaction imposed by the Pauli principle of…

高能物理 - 理论 · 物理学 2008-11-26 A. Jellal , T. D. Palev , J. Van der Jeugt

Self-propelled particles with hydrodynamic interactions (microswimmers) have previously been shown to produce long-range ordering phenomena. Many theoretical explanations for these collective phenomena are connected to instabilities in the…

软凝聚态物质 · 物理学 2017-05-03 Yuzhou Qian , Peter R. Kramer , Patrick T. Underhill

Dynamic processes in dispersions of charged spherical particles are of importance both in fundamental science, and in technical and bio-medical applications. There exists a large variety of charged-particles systems, ranging from…

软凝聚态物质 · 物理学 2013-11-25 G. Nägele , M. Heinen , A. J. Banchio , C. Contreras-Aburto

Polymer electrolytes typically exhibit diminished ionic conductivity due to the presence of correlation effects between the cations and anions. Microscopically, transient ionic aggregates, e.g. {\it ion-pairs}, {\it ion-triplets} or higher…

材料科学 · 物理学 2008-04-15 Arijit Maitra , Andreas Heuer

Multi-particle collision dynamics is an appealing numerical technique aiming at simulating fluids at the mesoscopic scale. It considers molecular details in a coarse-grained fashion and reproduces hydrodynamic phenomena. Here, the…

软凝聚态物质 · 物理学 2019-03-28 H. Híjar

The structure of an aqueous solution of sodium chloride at a planar electrode is investigated by integral equation techniques. With the central force water model the aqueous electrolyte is modelled as a mixture of sodium and chloride ions…

chem-ph · 物理学 2009-10-28 M. Vossen , F. Forstmann

We present a Ginzburg-Landau theory of inhomogeneous polyelectrolytes with a polar solvent. First, we take into account the molecular (solvation) interaction among the ions, the charged monomers, the uncharged monomers, and the solvent…

软凝聚态物质 · 物理学 2009-03-10 Akira Onuki , Ryuichi Okamoto

Interaction non-additivity in the chemical context means that binding of certain atom to a reference atom cannot be fully predicted from the interactions of these two atoms with other atoms. This constitutes one of key phenomena determining…

化学物理 · 物理学 2015-02-24 Vitaly V. Chaban , Oleg V. Prezhdo

The propensity for ion-pairing can often dictate the thermodynamic and kinetic properties of electrolyte solutions. Fast and accurate estimates of ion-pairing can thus be extremely valuable for supplementing design and screening efforts for…

软凝聚态物质 · 物理学 2022-02-23 Ajay Muralidharan , Arun Yethiraj

We predict the thermodynamic behavior of bulk electrolytes from an ionic Hard-Core (HC) size-augmented self-consistent formalism incorporating asymmetrically the short- and long-range ion interactions via their virial and cumulant…

软凝聚态物质 · 物理学 2025-01-07 Sahin Buyukdagli

An ion in a radiofrequency ion trap interacting with a buffer gas of ultracold neutral atoms is a driven dynamical system which has been found to develop a non-thermal energy distribution with a power law tail. The exact analytical form of…

原子物理 · 物理学 2017-04-26 I. Rouse , S. Willitsch

We propose a simple and accurate model for the electron static structure factors (and corresponding pair-correlation functions) of the 3D unpolarized homogeneous electron gas. Our spin-resolved pair-correlation function is built up with a…

凝聚态物理 · 物理学 2009-10-31 Paola Gori-Giorgi , Francesco Sacchetti , Giovanni B. Bachelet

We apply a simple statistical mechanics cluster approximation for studying clustering in the Kern and Frenkel model of Janus fluids. The approach is motivated by recent Monte Carlo simulations work on the same model revealing that the vapor…

软凝聚态物质 · 物理学 2011-03-14 Riccardo Fantoni , Achille Giacometti , Francesco Sciortino , Giorgio Pastore

We use lattice Boltzmann simulations, in conjunction with Ewald summation methods, to investigate the role of hydrodynamic interactions in colloidal suspensions of dipolar particles, such as ferrofluids. Our work addresses volume fractions…

介观与纳米尺度物理 · 物理学 2009-10-20 Eunhye Kim , Kevin Stratford , Philip J. Camp , Michael E. Cates