New asymptotic behavior of the surface-atom force out of thermal equilibrium
Year: 2005
Authors: Antezza M., Pitaevskii L.P., Stringari S.
Autors Affiliation: Univ Trent, Dipartimento Fis, I-38050 Trento, Italy, CNR, INFM, BEC Ctr, I-38050 Trento, Italy; PL Kapitsa Phys Problems Inst, Moscow 119334, Russia; Ecole Normale Super, F-75231 Paris, France, Coll France, Lab Kastler Brossel, F-75231 Paris, France
Abstract: 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 1/z(3) at large distances (i.e., slower than at equilibrium), exhibits a sizable temperature dependence, and is attractive or repulsive depending on whether the temperature of the substrate is higher or smaller than the one of the environment. Our predictions can be relevant for experiments with ultracold atomic gases. Both dielectric and metal substrates are considered.
Journal/Review: PHYSICAL REVIEW LETTERS
Volume: 95 (11) Pages from: 113202-1 to: 113202-4
More Information: doi: 10.1103/PhysRevLett.95.113202KeyWords: Casimir force; ultracold atoms; DOI: 10.1103/PhysRevLett.95.113202ImpactFactor: 7.489Citations: 146data from “WEB OF SCIENCE” (of Thomson Reuters) are update at: 2024-09-29References taken from IsiWeb of Knowledge: (subscribers only)Connecting to view paper tab on IsiWeb: Click hereConnecting to view citations from IsiWeb: Click here