New asymptotic behavior of the surface-atom force out of thermal equilibrium
Anno: 2005
Autori: Antezza M., Pitaevskii L.P., Stringari S.
Affiliazione autori: 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.
Giornale/Rivista: PHYSICAL REVIEW LETTERS
Volume: 95 (11) Da Pagina: 113202-1 A: 113202-4
Maggiori informazioni: doi: 10.1103/PhysRevLett.95.113202Parole chiavi: Casimir force; ultracold atoms; DOI: 10.1103/PhysRevLett.95.113202Citazioni: 152dati da “WEB OF SCIENCE” (of Thomson Reuters) aggiornati al: 2025-05-18Riferimenti tratti da Isi Web of Knowledge: (solo abbonati) Link per visualizzare la scheda su IsiWeb: Clicca quiLink per visualizzare la citazioni su IsiWeb: Clicca qui
