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相关论文: Strong electrostatic interactions in spherical col…

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We report a mechanism which can lead to long range attractions between like-charged spherical macroions, stemming from the existence of metastable ionized states. We show that the ground state of a single highly charged colloid plus a few…

软凝聚态物质 · 物理学 2009-10-31 Rene Messina , Christian Holm , Kurt Kremer

The effect of fixed discrete colloidal charges in the primitive model is investigated for spherical macroions. Instead of considering a central bare charge, as it is traditionally done, we distribute \textit{discrete} charges randomly on…

软凝聚态物质 · 物理学 2009-10-31 Rene Messina , Christian Holm , Kurt Kremer

We investigate spherical macroions in the strong Coulomb coupling regime within the primitive model in salt-free environment. Molecular dynamics (MD) simulations are used to elucidate the effect of $discrete$ macroion charge distribution on…

软凝聚态物质 · 物理学 2009-11-07 Rene Messina , Christian Holm , Kurt Kremer

We investigate the complexation of a highly charged sphere with a long flexible polyelectrolyte, \textit{both negatively charged} in salt free environment. Electroneutrality is insured by the presence of divalent counterions. Using…

软凝聚态物质 · 物理学 2007-05-23 Rene Messina , Christian Holm , Kurt Kremer

We present an analytical approach to the strong coupling regime of similarly and highly charged plates in the presence of counter-ions. The procedure is physically transparent and based on an exact expansion around the ground state formed…

统计力学 · 物理学 2011-02-23 L. Samaj , E. Trizac

We study the effective interaction mediated by strongly coupled Coulomb fluids between dielectric surfaces carrying quenched, random monopolar charges with equal mean and variance, both when the Coulomb fluid consists only of mobile…

软凝聚态物质 · 物理学 2020-10-01 Malihe Ghodrat , Ali Naji , Haniyeh Komaie-Moghaddam , Rudolf Podgornik

We report the coupled effects of macroion charge discretization and counterion valence in the primitive model for spherical colloids. Instead of considering a uniformly charged surface, as it is traditionally done, we consider a more…

软凝聚态物质 · 物理学 2009-11-07 Rene Messina

Strong coupling phenomena, such as the like charged macroions attraction, opposite charged macroions repulsion, charge renormalization or charge inversion, are known to be mediated by multivalent counterions. Most theories treat the…

软凝聚态物质 · 物理学 2016-02-03 Sandipan Dutta , Y. S. Jho

In this letter, we study the ground state of two spherical macroions of identical radius, but asymmetric bare charge ((Q_{A}>Q_{B})). Electroneutrality of the system is insured by the presence of the surrounding divalent counterions. Using…

软凝聚态物质 · 物理学 2009-10-31 Rene Messina , Christian Holm , Kurt Kremer

Like-charged macroions attract each other as a result of strong electrostatic correlations in the presence of multivalent counterions or at low temperatures. We investigate the effective electrostatic interaction between i) two like-charged…

软凝聚态物质 · 物理学 2007-05-23 Ali Naji , Roland R. Netz

Charged soft-matter systems--such as colloidal dispersions and charged polymers--are dominated by attractive forces between constituent like-charged particles when neutralizing counterions of high charge valency are introduced. Such…

软凝聚态物质 · 物理学 2009-11-11 Ali Naji , Swetlana Jungblut , Andre G. Moreira , Roland R. Netz

A theory describing above-threshold ionization of atoms and ions in a strong electromagnetic field is presented. It is based on the widely known strong field approximation and incorporates the Coulomb interaction between the photoelectron…

原子物理 · 物理学 2009-11-13 S. V. Popruzhenko , D. Bauer

By a combination of Monte Carlo simulations and analytical calculations, we investigate the effective interactions between highly charged planar interfaces, neutralized by mobile counterions (salt-free system). While most previous analysis…

软凝聚态物质 · 物理学 2020-11-20 Ladislav Samaj , Martin Trulsson , Emmanuel Trizac

We present an overview of our understanding of electrostatic interactions between charged macromolecular surfaces mediated by mobile counter- and coions. The dichotomy between the weak and the strong coupling regimes is described in detail…

软凝聚态物质 · 物理学 2016-12-21 Ali Naji , Matej Kanduc , Roland R. Netz , Rudolf Podgornik

Recent Monte Carlo simulations (A. G. Moreira and R. R. Netz: Eur. Phys. J. E {\bf 8} (2002) 33) in the strong Coulomb coupling regime suggest strange counterion electrostatics unlike the Poisson-Boltzmann picture: when…

软凝聚态物质 · 物理学 2020-01-07 Hiroshi Frusawa

By a length scale analysis, we study the equilibrium interactions between two like-charge planes confining neutralising counter-ions. At large Coulombic couplings, approaching the two charged bodies leads to an unbinding of counter-ions, a…

软凝聚态物质 · 物理学 2012-10-23 E. Trizac , L. Samaj

We present a new analytical approach to the strong electrostatic coupling regime (SC), that can be achieved equivalently at low temperatures, high charges, low dielectric permittivity etc. Two geometries are analyzed in detail: one charged…

统计力学 · 物理学 2015-06-03 L. Šamaj , E. Trizac

We present a personal view on the current state of statistical mechanics of Coulomb fluids with special emphasis on the interactions between macromolecular surfaces, concentrating on the weak and the strong coupling limits. Both are…

软凝聚态物质 · 物理学 2015-06-16 Ali Naji , Matej Kanduč , Jan Forsman , Rudolf Podgornik

We are interested in rationalizing the phenomenon of like-charge attraction between charged bodies, such as a pair of colloids, in the strong coupling regime. The two colloids are modelled as uniformly charged parallel plates, neutralized…

软凝聚态物质 · 物理学 2025-01-13 L. Samaj , E. Trizac , M. Trulsson

We study the interaction between two charge regulating spherical macroions with dielectric interior and dissociable surface groups immersed in a monovalent electrolyte solution. The charge dissociation is modelled via the…

软凝聚态物质 · 物理学 2023-12-11 Hu Ruixuan , Arghya Majee , Jure Dobnikar , Rudolf Podgornik
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