PhysRevA.86.052522.pdf (1.1 MB)
Exact dispersion-force potentials: interaction of an atom with a conductor-patched dielectric surface
journal contribution
posted on 2023-06-08, 14:42 authored by Claudia Eberlein, Robert ZietalWe study the interaction between a neutral atom or molecule and a conductor-patched dielectric surface. We model this system by a perfectly reflecting disk lying atop a nondispersive dielectric half-space, both interacting with the neutral atom or molecule. We assume the interaction to be nonretarded and at zero temperature. We find an exact solution to this problem. In addition, we generate a number of other useful results. For the case of no substrate, we obtain the exact formula for the van der Waals interaction energy of an atom near a perfectly conducting disk. We show that the force acting on an atom that is polarized in the direction normal to the surface of the disk displays intricate behavior. This part of our results is directly relevant to recent matter-wave experiments in which cold molecules are scattered by a radially symmetric object in order to study interference patterns and the so-called Poisson spot. Furthermore, we give an exact expression for the nonretarded limit of the dispersion force potential between an atom and a perfectly conducting bowl.
History
Publication status
- Published
File Version
- Published version
Journal
Physical Review AISSN
1050-2947Publisher
American Physical SocietyExternal DOI
Issue
5Volume
86Page range
052522-1Department affiliated with
- Physics and Astronomy Publications
Full text available
- Yes
Peer reviewed?
- Yes
Legacy Posted Date
2013-04-17First Open Access (FOA) Date
2013-04-17First Compliant Deposit (FCD) Date
2013-04-17Usage metrics
Categories
No categories selectedKeywords
Licence
Exports
RefWorks
BibTeX
Ref. manager
Endnote
DataCite
NLM
DC