Van der Waals interaction and spontaneous decay of an excited atom in a superlens-type geometry

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dc.creatorSambale, Agnes
dc.creatorBuhmann, Stefan Yoshi
dc.creatorWelsch, Dirk-Gunnar
dc.creatorDung, Ho Trung
dc.date2007-11-21
dc.date2008-11-28
dc.date.accessioned2026-07-07T12:41:53Z
dc.date.available2026-07-07T12:41:53Z
dc.descriptionWithin the framework of macroscopic quantum electrodynamics, the resonant van der Waals potential experienced by an excited two-level atom near a planar magneto-electric two-layer system consisting of a slab of left-handed material and a perfect mirror is studied. It is shown that disregarding of material absorption leads to unphysical results, with divergent values for the potential away from the surface. Under appropriate conditions, the setup is found to feature a barrier near the surface which can be employed to levitate particles or used as a trapping or cooling mechanism. Finally, the problem of spontaneous decay [J. Kästel and M. Fleischhauer, Phys. Rev. A \textbf{68}, 011804(R) (2005)] is revisited. Disregarding of absorption is shown to drastically falsify the dependence on the atomic position of the decay rate.
dc.description10 Pages, 6 figures
dc.identifierhttps://arxiv.org/abs/0711.3369
dc.identifierhttp://arxiv.org/abs/0711.3369
dc.identifierPhysical Review A 78 (5), 053828 (2008)
dc.identifierdoi:10.1103/PhysRevA.78.053828
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/219896
dc.subjectQuantum Physics
dc.titleVan der Waals interaction and spontaneous decay of an excited atom in a superlens-type geometry
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