{ "id": "0906.2272", "version": "v2", "published": "2009-06-12T08:00:19.000Z", "updated": "2010-01-04T14:18:04.000Z", "title": "Enhancement of thermal Casimir-Polder potentials of ground-state polar molecules in a planar cavity", "authors": [ "Simen A. Ellingsen", "Stefan Yoshi Buhmann", "Stefan Scheel" ], "comment": "12 pages, 10 figures, minor corrections", "journal": "Physical Review A 80 (2), 022901 (2009)", "doi": "10.1103/PhysRevA.80.022901", "categories": [ "quant-ph" ], "abstract": "We analyze the thermal Casimir-Polder potential experienced by a ground-state molecule in a planar cavity and investigate the prospects for using such a set-up for molecular guiding. The resonant atom-field interaction associated with this non-equilibrium situation manifests itself in oscillating, standing-wave components of the potential. While the respective potential wells are normally too shallow to be useful, they may be amplified by a highly reflecting cavity whose width equals a half-integer multiple of a particular molecular transition frequency. We find that with an ideal choice of molecule and the use of ultra-high reflectivity Bragg mirror cavity, it may be possible to boost the potential by up to two orders of magnitude. We analytically derive the scaling of the potential depth as a function of reflectivity and analyze how it varies with temperature and molecular properties. It is also shown how the potential depth decreases for standing waves with a larger number of nodes. Finally, we investigate the lifetime of the molecular ground state in a thermal environment and find that it is not greatly influenced by the cavity and remains in the order of several seconds.", "revisions": [ { "version": "v2", "updated": "2010-01-04T14:18:04.000Z" } ], "analyses": { "subjects": [ "34.35.+a", "12.20.-m", "42.50.Ct", "42.50.Nn" ], "keywords": [ "thermal casimir-polder potential", "ground-state polar molecules", "planar cavity", "ultra-high reflectivity bragg mirror cavity", "enhancement" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Physical Review A", "year": 2009, "month": "Aug", "volume": 80, "number": 2, "pages": "022901" }, "note": { "typesetting": "TeX", "pages": 12, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2009PhRvA..80b2901E" } } }