Multipole effects in atom-surface interactions

• Verfasst von: Łach, Grzegorz [VerfasserIn]
• Verfasst von: DeKieviet, Maarten [VerfasserIn]
• Verfasst von: Jentschura, Ulrich D. [VerfasserIn]
• Titel: Multipole effects in atom-surface interactions
• Titelzusatz: a theoretical study with an application to He-α-quartz
• Verf.angabe: Grzegorz Łach, Maarten DeKieviet, and Ulrich D. Jentschura
• E-Jahr: 2010
• Jahr: 8 May 2010
• Umfang: 12 S.
• Fussnoten: Gesehen am 09.03.2023
• Titel Quelle: Enthalten in: Physical review / A
• Ort Quelle: College Park, Md., 1970
• Jahr Quelle: 2010
• Band/Heft Quelle: 81(2010), 5 vom: Mai, Artikel-ID 052507, Seite 1-12
• ISSN Quelle: 1094-1622
• DOI: doi:10.1103/PhysRevA.81.052507
• Datenträger: Online-Ressource
• Sprache: eng
• K10plus-PPN: 1838730087

Abstract

We address some practically important and experimentally relevant questions concerning atom-surface interactions. For example, the quadrupole interaction of an atom with a dielectric macroscopic surface is obtained with full allowance for retardation and in closed form, valid for an arbitrary atom-surface distance. We also explore the relevance of higher-order multipole effects in atom-surface interactions, and we find that details in the dielectric response function of the surface material have to be resolved in order to accurately calculate the atom-surface potential. They lead to important effects at an intermediate range which cannot be explained by either short-range or long-range asymptotics. A numerical example (helium interacting with α-quartz) is included in order to illustrate this aspect.