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We study the adsorption and desorption kinetics of interacting particles moving on a one-dimensional lattice. Confinement is introduced by limiting the number of particles on a lattice site. Adsorption and desorption are found to proceed at…

统计力学 · 物理学 2014-12-16 T. Becker , K. Nelissen , B. Cleuren , B. Partoens , C. Van den Broeck

We present a formalism based on first principles of quantum electrodynamics at nonzero temperature which permits to calculate the Casimir-Polder interaction between an atom and a graphene sheet with arbitrary mass gap and chemical…

介观与纳米尺度物理 · 物理学 2018-03-08 C. Henkel , G. L. Klimchitskaya , V. M. Mostepanenko

The thermal correction to the energy of Casimir-Polder interaction of atoms with a suspended graphene membrane described by the Dirac model is investigated. We show that a major impact on the thermal correction is made by the size of the…

量子物理 · 物理学 2015-06-05 M. Chaichian , G. L. Klimchitskaya , V. M. Mostepanenko , A. Tureanu

A previously developed approach for the numerical treatment of two particles that are confined in a finite optical-lattice potential and interact via an arbitrary isotropic interaction potential has been extended to incorporate an…

量子气体 · 物理学 2014-12-10 Bruno Schulz , Simon Sala , Alejandro Saenz

The Casimir interaction between one-dimensional metallic objects (cylinders, wires) displays unconventional features. Here we study the orientation dependence of this interaction by computing the Casimir energy between two inclined…

量子物理 · 物理学 2014-10-30 P. Rodriguez-Lopez , T. Emig

Overdamped motion of Brownian particles in tilted piecewise linear periodic potentials is considered. Explicit algebraic expressions for the diffusion coefficient, current, and coherence level of Brownian transport are derived. Their…

软凝聚态物质 · 物理学 2009-11-10 Els Heinsalu , Risto Tammelo , Teet Ord

A binary colloidal mixture of unequal sizes, subjected to an external potential barrier, has been investigated using canonical ensemble molecular dynamics simulations. The attractive depletion interaction between the external barrier and…

软凝聚态物质 · 物理学 2022-03-11 Mahammad Mustakim , A. V. Anil Kumar

We extend our approach to the Casimir effect between absorbing dielectric multilayers [M. S. Tomas, Phys. Rev. A 66, 052103 (2002)] to magnetodielectric systems. The resulting expression for the force is used to numerically explore the…

量子物理 · 物理学 2009-11-10 M. S. Tomas

We present a versatile setup for investigating the nanofluidic behavior of nanoparticles as a function of the gap distance between two confining surfaces. The setup is designed as an open system which operates with small amounts of…

软凝聚态物质 · 物理学 2017-01-17 Stefan Fringes , Felix Holzner , Armin W. Knoll

In this paper, we derive the formula for the Casimir interaction energy between a sphere and a plate in $(D+1)$-dimensional Minkowski spacetime. It is assumed that the scalar field satisfies the Dirichlet or Neumann boundary conditions on…

高能物理 - 理论 · 物理学 2015-06-18 L. P. Teo

We develop the scattering approach to calculate the exact dispersive Casimir-Polder potential between a ground-state atom and a rectangular grating. Our formalism allows, in principle, for arbitrary values of the grating amplitude and…

We study the infinite temperature dynamics of a prototypical one-dimensional system expected to exhibit many-body localization. Using numerically exact methods, we establish the dynamical phase diagram of this system based on the statistics…

无序系统与神经网络 · 物理学 2015-03-18 Yevgeny Bar Lev , Guy Cohen , David R. Reichman

The Casimir-Polder-Lifshitz force felt by an atom near the surface of a substrate is calculated out of thermal equilibrium in terms of the dielectric function of the material and of the atomic polarizability. The new force decays like…

统计力学 · 物理学 2007-05-23 Mauro Antezza , Lev P. Pitaevskii , Sandro Stringari

This work is a continuation of our papers from the last couple of years on the Casimir friction for a pair of particles at low relative velocity. The new element in the present analysis is to allow the media to be dense. Then the situation…

量子物理 · 物理学 2013-10-21 Johan S. Høye , Iver Brevik

We investigate the effective interactions between two nanoparticles (or colloids) immersed in a solvent exhibiting two-phase separation. Using a non-local density functional theory, we determine the dependence of the effective potential on…

软凝聚态物质 · 物理学 2015-03-12 Alexandr Malijevský

The prototypical Casimir effect arises when a scalar field is confined between parallel Dirichlet boundaries. We study corrections to this when the boundaries themselves have apertures and edges. We consider several geometries: a single…

高能物理 - 理论 · 物理学 2011-11-02 Daniel Kabat , Dimitra Karabali , V. P. Nair

We investigate the dynamics of two interacting diffusing particles in an infinite effectively one dimensional system; the particles interact through a step-like potential of width b and height phi_0 and are allowed to pass one another. By…

生物大分子 · 定量生物学 2009-11-13 Tobias Ambjornsson , Robert J. Silbey

We consider two dimensional dispersions of droplets of isotropic phase in a liquid with an XY-like order parameter, tilt, nematic, and hexatic symmetries being included. Strong anchoring boundary conditions are assumed. Textures for a…

软凝聚态物质 · 物理学 2008-07-06 K. S. Korolev , David R. Nelson

We examine the solvent-mediated interaction between two neutral colloidal particles due to preferential adsorption in a near-critical binary mixture. We take into account the renormalization effect due to the critical fluctuations using the…

软凝聚态物质 · 物理学 2013-08-21 Ryuichi Okamoto , Akira Onuki

Numerical and closed-form analytic expressions for plasmon dispersion relations and rates of dissipation are first obtained at finite-temperatures for free-standing gapped graphene. These closed-system results are generalized to an open…

介观与纳米尺度物理 · 物理学 2016-01-20 Andrii Iurov , Godfrey Gumbs , Danhong Huang , V. M. Silkin