Sign of the Casimir-Polder interaction between atoms and oil-water interfaces: Subtle dependence on dielectric properties
نویسندگان
چکیده
Mathias Boström,1,2,3,* Simen Å. Ellingsen,1 Iver Brevik,1 Drew F. Parsons,3,† and Bo E. Sernelius2,‡ 1Department of Energy and Process Engineering, Norwegian University of Science and Technology, N-7491 Trondheim, Norway 2Division of Theory and Modeling, Department of Physics, Chemistry and Biology, Linköping University, SE-581 83 Linköping, Sweden 3Department of Applied Mathematics, Australian National University, Canberra, Australia (Received 26 March 2012; published 14 June 2012)
منابع مشابه
ua nt - p h / 06 01 03 1 v 1 5 J an 2 00 6 Dependences of the Casimir - Polder interaction between an atom and a cavity wall on atomic and material properties
The Casimir-Polder and van der Waals interactions between an atom and a flat cavity wall are investigated under the influence of real conditions including the dynamic polarizability of the atom, actual conductivity of the wall material and nonzero temperature of the wall. The cases of different atoms near metal and dielectric walls are considered. It is shown that to obtain accurate results for...
متن کاملMeasurement of the temperature dependence of the Casimir-Polder force.
We report on the first measurement of a temperature dependence of the Casimir-Polder force. This measurement was obtained by positioning a nearly pure 87Rb Bose-Einstein condensate a few microns from a dielectric substrate and exciting its dipole oscillation. Changes in the collective oscillation frequency of the magnetically trapped atoms result from spatial variations in the surface-atom forc...
متن کاملCasimir-Polder interaction of atoms with magnetodielectric bodies
Abstract. A general theory of the Casimir-Polder interaction of single atoms with dispersing and absorbing magnetodielectric bodies is presented, which is based on QED in linear, causal media. Both ground-state and excited atoms are considered. Whereas the Casimir-Polder force acting on a ground-state atom can conveniently be derived from a perturbative calculation of the atom-field coupling en...
متن کاملمحاسبه پتانسیل برهمکنش واندروالس گرمایی با استفاده از پتانسیل کازیمیر- پولدر
In this study, thermal Casimir-Polder potential is calculated for an atom in the presence of a dielectric sphere using the formula given in terms of the Green’s function. Then, the limiting cases of large and small sphere are investigated. In the limiting case of a large sphere, the formula of thermal potential for an excited atom in the presence of a dielectric half-space and then a perfectly ...
متن کاملCasimir-Polder interaction between an atom and a cylinder with application to nanosystems
Recently the Lifshitz theory of dispersion forces was extended for the case of an atom (molecule) interacting with a plane surface of a uniaxial crystal or with a long solid cylinder or cylindrical shell made of isotropic material or uniaxial crystal. The obtained results are applicable to nanosystems. In particular, we investigate the Casimir-Polder interaction between hydrogen atoms (molecule...
متن کامل