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We investigate the pseudo-Casimir force acting between two charged surfaces confining a single polyelectrolyte chain with opposite charge. We expand the exact free energy to the second order in the local electrostatic field as well as the…

软凝聚态物质 · 物理学 2009-11-07 R. Podgornik , J. Dobnikar

We explore one-dimensional (1-D) samples of ultracold polar molecules with attractive dipole-dipole interactions and show the existence of a repulsive barrier due to a strong quadrupole interaction between molecules. This barrier can…

化学物理 · 物理学 2015-06-05 Jason N. Byrd , John A. Montgomery , Robin Côté

We perform a detailed analysis of solutions of the inverse problem applied to experimentally measured two-dimensional radial distribution functions for highly charged latex dispersions. The experiments are carried out at high colloidal…

软凝聚态物质 · 物理学 2009-11-10 Vladimir Lobaskin , Matthias Brunner , Clemens Bechinger , Hans Hennig von Gruenberg

Throughout physics, stable composite objects are usually formed via attractive forces, which allow the constituents to lower their energy by binding together. Repulsive forces separate particles in free space. However, in a structured…

其他凝聚态物理 · 物理学 2007-05-23 K. Winkler , G. Thalhammer , F. Lang , R. Grimm , J. Hecker Denschlag , A. J. Daley , A. Kantian , H. P. Buechler , P. Zoller

We investigate the statistical mechanics of an inhomogeneous Coulomb fluid composed of charged particles with static polarizability. We derive the weak- and the strong-coupling approximations and evaluate the partition function in a planar…

软凝聚态物质 · 物理学 2013-04-22 Vincent Démery , David S. Dean , Rudolf Podgornik

A repulsive interaction model of superconductivity (SC) is studied for tight-binding models with three-fold degenerate molecular orbitals. Taking a weak-coupling approach, we derive dimensionless coupling constants for various symmetries of…

强关联电子 · 物理学 2015-06-12 Satoshi Yamazaki , Yoshio Kuramoto

Properties of the "electron gas" - in which conduction electrons interact by means of Coulomb forces but ionic potentials are neglected - change dramatically depending on the balance between kinetic energy and Coulomb repulsion. The limits…

介观与纳米尺度物理 · 物理学 2007-05-23 Amit Ghosal , A. D. Guclu , C. J. Umrigar , Denis Ullmo , Harold U. Baranger

In their Letter, Schreck, Bertrand, O'Hern and Shattuck [Phys. Rev. Lett. 107, 078301 (2011)] study nonlinearities in jammed particulate systems that arise when contacts are altered. They conclude that there is "no harmonic regime in the…

软凝聚态物质 · 物理学 2015-01-05 Carl P. Goodrich , Andrea J. Liu , Sidney R. Nagel

Combining nonperturbative techniques with Monte Carlo simulations we demonstrate that quantum coherence effects for a particle on a ring are suppressed beyond a finite length $L_{\phi}$ even at zero temperature if the particle is coupled to…

介观与纳米尺度物理 · 物理学 2009-11-07 Dmitri S. Golubev , Carlos P. Herrero , Andrei D. Zaikin

Nonreciprocal interactions have recently attracted growing interest in nonequilibrium physics. In particular, breaking action-reaction symmetry has been proposed as a mechanism for collective motion, yet controlled experimental realizations…

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

This study investigates the interplay between Strong Coupling (SC) attraction and hydration repulsion in nanoconfined water between like-charged phospholipid layers. It challenges the assumption that SC attraction requires multivalent…

Modifications of Casimir-Polder interactions due to confinement inside a cylindrical cavity and due to curvature in- and outside the cavity are studied. We consider a perfectly conducting cylindrical shell with a single particle (atom or…

统计力学 · 物理学 2015-06-23 Pablo Rodriguez-Lopez , Thorsten Emig , Ehsan Noruzifar , Roya Zandi

We report the formation of alternating strings and clusters in a binary suspension of repulsive charged colloids with double layers larger than the particle size. Within a binary cell model we include many-body and charge-regulation effects…

软凝聚态物质 · 物理学 2016-08-16 Jeffrey C. Everts , Marjolein N. van der Linden , Alfons van Blaaderen , René van Roij

Conditions at which a quasi-one-dimensional (1D) electron system can be considered as a quantum liquid of impenetrable charged particles are theoretically analyzed. In the presence of an inert, neutralizing background, a motion of…

超导电性 · 物理学 2024-06-21 Yu. P. Monarkha

Spherical colloids that catalyze the interconversion reaction $A \leftrightharpoons B$ between solute molecules $A$ and $B$ whose concentration at infinity is maintained away from equilibrium effectively interact due to the non-uniform…

软凝聚态物质 · 物理学 2020-07-21 Alexander Y. Grosberg , Yitzhak Rabin

The interaction force between likely charged particles/surfaces is usually repulsive due to the Coulomb interaction. However, the counterintuitive like-charge attraction in electrolytes has been frequently observed in experiments, which has…

软凝聚态物质 · 物理学 2016-11-08 Pei Liu , Manman Ma , Zhenli Xu

We study analytically and numerically dynamics and eigenstates of two electrons with Coulomb repulsion on a tight-binding lattice in one and two dimensions. The total energy and momentum of electrons are conserved and we show that for a…

超导电性 · 物理学 2020-06-18 Klaus M. Frahm , Dima L. Shepelyansky

The theory of first order density-driven phase transitions with frustration due to the long range Coulomb (LRC) interaction develop on paper I of this series is applied to the following physical systems: i) the low density electron gas ii)…

强关联电子 · 物理学 2016-08-31 J. Lorenzana , C. Castellani , C. Di Castro

We present a scheme comprised of a one-dimensional system with repulsive interactions, in which the formation of bound pairs can take place in an easily tunable fashion.By capacitively coupling a primary electronic quantum wire of interest…

强关联电子 · 物理学 2020-11-30 Gal Shavit , Yuval Oreg
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