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Measurement of the Temperature Dependence of the Casimir-Polder Force

Authors :: John M. Obrecht
Mauro Antezza
Robert Wild
Sandro Stringari
Eric A. Cornell
Lev P. Pitaevskii
Joint Institute for Laboratory Astrophysics (JILA)
National Institute of Standards and Technology [Gaithersburg] (NIST)-University of Colorado [Boulder]
Dipartimento di Fisica [Povo]
Università degli Studi di Trento (UNITN)
Kapitza Institute for Physical Problems [Moscow]
Russian Academy of Sciences [Moscow] (RAS)
Source :: Physical review letters, 98 (2007): 063201. doi:10.1103/PhysRevLett.98.063201, info:cnr-pdr/source/autori:Obrecht, JM; Wild, RJ; Antezza, M; Pitaevskii, LP; Stringari, S; Cornell, EA/titolo:Measurement of the temperature dependence of the Casimir-Polder force/doi:10.1103%2FPhysRevLett.98.063201/rivista:Physical review letters (Print)/anno:2007/pagina_da:063201/pagina_a:/intervallo_pagine:063201/volume:98, Physical Review Letters, Physical Review Letters, American Physical Society, 2007, 98 (6), pp.063201. ⟨10.1103/PhysRevLett.98.063201⟩
Publication Year :: 2006
Publisher :: arXiv, 2006.
Abstract: We report on the first measurement of a temperature dependence of the Casimir-Polder force. This measurement was obtained by positioning a nearly pure 87-Rb Bose-Einstein condensate a few microns from a dielectric substrate and exciting its dipole oscillation. Changes in the collective oscillation frequency of the magnetically trapped atoms result from spatial variations in the surface-atom force. In our experiment, the dielectric substrate is heated up to 605 K, while the surrounding environment is kept near room temperature (310 K). The effect of the Casimir-Polder force is measured to be nearly 3 times larger for a 605 K substrate than for a room-temperature substrate, showing a clear temperature dependence in agreement with theory.<br />Comment: 4 pages, 4 figures, published in Physical Review Letters

Details

ISSN :: 00319007 and 10797114
Database :: OpenAIRE
Journal :: Physical review letters, 98 (2007): 063201. doi:10.1103/PhysRevLett.98.063201, info:cnr-pdr/source/autori:Obrecht, JM; Wild, RJ; Antezza, M; Pitaevskii, LP; Stringari, S; Cornell, EA/titolo:Measurement of the temperature dependence of the Casimir-Polder force/doi:10.1103%2FPhysRevLett.98.063201/rivista:Physical review letters (Print)/anno:2007/pagina_da:063201/pagina_a:/intervallo_pagine:063201/volume:98, Physical Review Letters, Physical Review Letters, American Physical Society, 2007, 98 (6), pp.063201. ⟨10.1103/PhysRevLett.98.063201⟩
Accession number :: edsair.doi.dedup.....16d90a46db4fbd1f3b2ddf5d7f92fa66
Full Text :: https://doi.org/10.48550/arxiv.physics/0608074