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Van der Waals shifts in an atom near absorptive dielectric mirrors
journal contribution
posted on 2023-06-08, 08:29 authored by Gabriel BartonThe changes of energies and lifetimes are calculated for an atom fixed near a flat dielectric mirror, or at the midpoint of the gap between two such mirrors. The theory is formulated only for the non-retarded regime governed wholly by Coulomb forces, where all separations are much smaller than the dominant absorption wavelengths of the atom. It proceeds by constructing and then quantizing a simple model for the dielectric that admits dissipation and covers the resonant case important for experiments, where a downward atomic transition frequency can coincide with the (discrete) frequency of surface polaritons on a hypothetically non-dissipative half-space. The results are found first for zero temperature and then for T > 0. For completeness, an appendix extends the model to an unbounded medium.
History
Publication status
- Published
Journal
Proceedings A: Mathematical, Physical and Engineering SciencesISSN
1471-2946Publisher
Royal Society, TheExternal DOI
Issue
1966Volume
453Page range
2461-2495ISBN
1364-5021Department affiliated with
- Physics and Astronomy Publications
Full text available
- No
Peer reviewed?
- Yes
Legacy Posted Date
2012-02-06Usage metrics
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