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Using a recently obtained (general) formula for the interaction energy between an excited and a ground-state atom (Sherkunov Y 2007 Phys. Rev. A 75 012705), we consider the interaction energy between two such atoms near the interface…

量子物理 · 物理学 2008-04-10 Marin-Slobodan Tomas

Using fourth-order perturbation theory, a general formula for the van der Waals potential of two neutral, unpolarized, ground-state atoms in the presence of an arbitrary arrangement of dispersing and absorbing magnetodielectric bodies is…

量子物理 · 物理学 2007-05-23 Hassan Safari , Stefan Yoshi Buhmann , Dirk-Gunnar Welsch , Ho Trung Dung

We consider the the van der Waals force involving excited atoms in general environments, constituted by magnetodielectric bodies. We develop a dynamical approach studying the dynamics of the atoms and the field, mutually coupled. When only…

量子物理 · 物理学 2017-02-24 Pablo Barcellona , Roberto Passante , Lucia Rizzuto , Stefan Yoshi Buhmann

The van der Waals potential of two atoms in the presence of an arbitrary arrangement of dispersing and absorbing magnetodielectric bodies is studied. Starting from a polarizable atom placed within a given geometry, its interaction with a…

量子物理 · 物理学 2007-09-11 Stefan Yoshi Buhmann , Hassan Safari , Ho Trung Dung , Dirk-Gunnar Welsch

The van der Waals interaction between two ground-state atoms is calculated for two electrically or magnetically polarizable particles embedded in a dispersive magneto-dielectric medium. Unlike previous calculations which infer the atom-atom…

量子物理 · 物理学 2009-11-13 S. Spagnolo , D. A. R. Dalvit , P. W. Milonni

Casimir interaction between two media of ground-state atoms is well described with the help of Lifshitz formula depending upon permittivity of media. We will show that this formula is in contradiction with experimental evidence for excited…

量子物理 · 物理学 2007-05-23 Yury B. Sherkunov

The Casimir-Polder potential for interaction between an excited atom and a ground-state one in the retarded case obtained with the help of perturbation technique drops as R^-2 with the distance between the atoms [E.A. Power,…

量子物理 · 物理学 2007-05-23 Yury Sherkunov

Within the frame of macroscopic quantum electrodynamics in causal media, the van der Waals interaction between an atomic system and an arbitrary arrangement of dispersing and absorbing dielectric bodies including metals is studied. It is…

量子物理 · 物理学 2007-05-23 Stefan Yoshi Buhmann , Ho Trung Dung , Dirk-Gunnar Welsch

We consider the Casimir-Polder interaction between two atoms, one in the ground state and the other in its excited state. The interaction is time-dependent for this system, because of the dynamical self-dressing and the spontaneous decay of…

量子物理 · 物理学 2009-11-10 L. Rizzuto , R. Passante , F. Persico

We consider the van der Waals interaction of an excited atom and a ground state atom across a vacuum-medium interface under the circumstances of the resonant coupling of the excited atom to a surface polariton mode of the system. We…

量子物理 · 物理学 2015-05-13 Marin-Slobodan Tomas

Based on a microscopic model, we use a functional integral approach to evaluate the quantum interaction energy between two neutral atoms. Each atom is coupled to the electromagnetic (EM) field via a dipole term, generated by an electron…

量子物理 · 物理学 2023-07-19 C. D. Fosco , G. Hansen

We compute the conservative van-der-Waals forces between two atoms, one of which is initially excited, in the limit of identical atoms. Starting with the perturbative calculation of the interaction between two dissimilar atoms, we show that…

量子物理 · 物理学 2021-12-08 J. Sánchez-Cánovas , M. Donaire

I revisit the problem of the interaction between two dissimilar atoms with one atom in an excited state, recently addressed by the authors of Refs.[1-3], and for which precedent approaches have given conflicting results. In the first place,…

量子物理 · 物理学 2016-05-25 Manuel Donaire

On the basis of a general formula obtained earlier via fourth-order erturbation theory within the framework of macroscopic quantum electrodynamics, the van der Waals potential between two neutral, unpolarized, ground-state atoms in the…

量子物理 · 物理学 2008-08-14 Hassan Safari , Dirk-Gunnar Welsch , Ho Trung Dung , Stefan Yoshi Buhmann

We consider the van der Waals interaction between two ground-state atoms embedded in adjacent semi-infinite magnetodielectric media, with emphasis on medium effects on it. We demonstrate that, in this case, at small atom-atom distances the…

量子物理 · 物理学 2009-11-13 M. S. Tomas

We consider the interatomic van der Waals interaction energy between two neutral ground-state atoms moving in the vacuum space with the same uniform acceleration. We assume the acceleration orthogonal to their separation, so that their…

量子物理 · 物理学 2013-07-25 Antonio Noto , Roberto Passante

We study single- and two-atom van der Waals interactions of ground-state atoms which are both polarizable and paramagnetizable in the presence of magneto-electric bodies within the framework of macroscopic quantum electrodynamics. Starting…

量子物理 · 物理学 2010-01-04 Hassan Safari , Dirk-Gunnar Welsch , Stefan Yoshi Buhmann , Stefan Scheel

We obtained new nonrelativistic expression for the dynamical van der Waals atom -surface interaction energy of very convenient form for different applications. It is shown that classical result (Ferrell and Ritchie, 1980) holds only for a…

其他凝聚态物理 · 物理学 2011-08-10 G. V. Dedkov , A. A. Kyasov

We compute the interaction energies of a two-atom system placed in the middle of a perfectly reflecting planar cavity, in the perturbative regime. Explicit expressions are provided for the van der Waals potentials of two polarisable atomic…

量子物理 · 物理学 2017-11-01 M. Donaire , J. M. Muñoz-Castañeda , L. M. Nieto

The electrostatic interaction between an excited atom and a diatomic ground state molecule in an arbitrary rovibrational level at large mutual separations is investigated with a general second-order perturbation theory, in the perspective…

量子物理 · 物理学 2017-04-11 M. Lepers , R. Vexiau , N. Bouloufa , O. Dulieu , V. Kokoouline
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