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We predict a repulsive Casimir-Polder-type dispersion interaction between a single neutron and a metal or dielectric surface. We consider a scenario where a single neutron is subject to an external magnetic field. Due to its intrinsic…

The long-range interactions of two atoms, of an atom and a dielectric wall, of an atom and a perfectly conducting wall, and of an atom between two perfectly conducting walls are calculated, including the effects of retardation, for Li using…

原子物理 · 物理学 2008-02-03 Zong-Chao Yan , A. Dalgarno , J. F. Babb

The purpose of this paper is twofold. First, we compare, in detail, the derivation of the Casimir-Polder interaction using time-ordered perturbation theory, to the matching of the scattering amplitude using quantum electrodynamics. In the…

原子物理 · 物理学 2019-04-10 C. M. Adhikari , U. D. Jentschura

We theoretically investigate the effect of long-ranged dipole-dipole interaction (LRDDI) on a superradiant laser (SL). This effect is induced from the atom-photon interaction in the dissipation process. In the bad-cavity limit usually…

量子物理 · 物理学 2016-11-15 H. H. Jen

We investigate the dispersive Casimir-Polder interaction between a Rubidium atom and a suspended graphene sheet subjected to an external magnetic field B. We demonstrate that this concrete physical system allows for an unprecedented control…

量子物理 · 物理学 2015-05-12 T. Cysne , W. J. M. Kort-Kamp , D. Oliver , F. A. Pinheiro , F. S. S. Rosa , C. Farina

The quantum mechanical few-body problem at ultracold energies poses severe challenges to theoretical techniques, particularly when long-range interactions are present that decay only as a power-law potential. In this paper we review the…

原子物理 · 物理学 2015-09-02 Yujun Wang , P. S. Julienne , Chris H. Greene

Accurate knowledge of interaction potentials among the alkali atoms and alkaline earth ions is very useful in the studies of cold atom physics. Here we carry out theoretical studies of the long-range interactions among the Li, Na, K, and Rb…

原子物理 · 物理学 2014-09-26 Jasmeet Kaur , D. K. Nandy , Bindiya Arora , B. K. Sahoo

The nuclear interactions of atomic and low energy antiprotons are studied. Measurements of level shifts and widths in the lightest elements are analyzed and compared with new results obtained in heavy nuclei. Simple geometric properties of…

核理论 · 物理学 2017-08-23 S. Wycech

We describe a novel experiment based on atoms trapped close to a macroscopic surface, to study the interactions between the atoms and the surface at very small separations (0.6 to 10 $\mu$m). In this range the dominant potential is the QED…

We consider the dispersion interaction between two ground-state hydrogen atoms, interacting with the quantum electromagnetic field in the vacuum state, in the presence of an external static electric field, both in the nonretarded and in the…

量子物理 · 物理学 2020-01-10 G. Fiscelli , L. Rizzuto , R. Passante

Casimir-Polder interactions are considered in an inhomogeneous, dispersive background. We consider both the interaction between a polarizable atom and a perfectly conducting wall, and between such an atom and a plane interface between two…

量子物理 · 物理学 2019-03-19 Kimball A. Milton

A quasi-resonant laser induces a long-range attractive force within a cloud of cold atoms. We take advantage of this force to build in the laboratory a system of particles with a one-dimensional gravitational-like interaction, at a fluid…

原子物理 · 物理学 2015-06-04 Maryvonne Chalony , J. Barre , B. Marcos , A. Olivetti , David Wilkowski

The retarded dispersion interaction (Casimir interaction) between two dilute dielectric media at high temperatures is considered. The excited atoms are taken into account. It is shown that the perturbation technique can not be applied to…

量子物理 · 物理学 2009-11-13 Yury Sherkunov

We study the thermal Casimir effect between two thick slabs composed of plane-parallel layers of random dielectric materials interacting across an intervening homogeneous dielectric. It is found that the effective interaction at long…

无序系统与神经网络 · 物理学 2015-05-13 D. S. Dean , R. R. Horgan , A. Naji , R. Podgornik

We study the effect of a photon background at finite temperature $T$ on the Van der Waals interactions among neutral bodies. It turns out that the long-range Casimir-Polder force is unaffected for distances much less than $T^{-1}$ and…

高能物理 - 唯象学 · 物理学 2009-10-31 F. Ferrer , J. A. Grifols

The analytic expressions for the free energy and entropy of the Casimir-Polder interaction between a polarizable and magnetizable atom and a graphene sheet are found in the limiting case of low temperature. In so doing, the response of…

量子物理 · 物理学 2018-09-26 G. L. Klimchitskaya , V. M. Mostepanenko

We investigate the role of surface plasmons in the electromagnetic Casimir effect at finite temperature, including situations out of global thermal equilibrium. The free energy is calculated analytically and expanded for different regimes…

量子物理 · 物理学 2010-08-05 F. Intravaia , H. Haakh , C. Henkel

We study the interaction of atomic and molecular hydrogen with a surface of tholin, a man-made polymer considered to be an analogue of aerosol particles present in Titan's atmosphere, using thermal programmed desorption at low temperatures…

地球与行星天体物理 · 物理学 2010-10-08 Ling Li , Hui Zhao , Gianfranco Vidali , Yechiel Frank , Ingo Lohmar , Hagai B. Perets , Ofer Biham

Polarisable atoms and molecules experience the Casimir-Polder force near magnetoelectric bodies, a force that is induced by quantum fluctuations of the electromagnetic field and the matter. Atoms and molecules in relative motion to a…

量子物理 · 物理学 2010-01-04 Stefan Scheel , Stefan Yoshi Buhmann

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