Multipole effects in atom-surface interactions

A theoretical study with an application to He-α-quartz

Grzegorz Łach, Maarten Dekieviet, U. Jentschura

Research output: Contribution to journalArticle

10 Citations (Scopus)

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.

Original languageEnglish
Article number052507
JournalPhysical Review A
Volume81
Issue number5
DOIs
Publication statusPublished - May 18 2010

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surface reactions
multipoles
quartz
atoms
allowances
quadrupoles
helium
interactions

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

Multipole effects in atom-surface interactions : A theoretical study with an application to He-α-quartz. / Łach, Grzegorz; Dekieviet, Maarten; Jentschura, U.

In: Physical Review A, Vol. 81, No. 5, 052507, 18.05.2010.

Research output: Contribution to journalArticle

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