Source:http://linkedlifedata.com/resource/pubmed/id/15600814
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| Predicate | Object |
|---|---|
| rdf:type | |
| lifeskim:mentions | |
| pubmed:issue |
19
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| pubmed:dateCreated |
2004-12-16
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| pubmed:abstractText |
We evaluate the frequencies of collective modes and the anisotropic expansion rate of a harmonically trapped Fermi superfluid at varying coupling strengths across a Feshbach resonance driving a BCS-BEC crossover. The equations of motion for the superfluid are obtained from a microscopic mean-field expression for the compressibility and are solved within a scaling ansatz. Our results confirm nonmonotonic behavior in the crossover region and are in quantitative agreement with current measurements of the transverse breathing mode by Kinast et al. [Phys. Rev. Lett. 92, 150402 (2004)]] and of the axial breathing mode by Bartenstein et al. [Phys. Rev. Lett. 92, 203201 (2004)]].
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| pubmed:language |
eng
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| pubmed:journal | |
| pubmed:status |
PubMed-not-MEDLINE
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| pubmed:month |
Nov
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| pubmed:issn |
0031-9007
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| pubmed:author | |
| pubmed:issnType |
Print
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| pubmed:day |
5
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| pubmed:volume |
93
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| pubmed:owner |
NLM
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| pubmed:authorsComplete |
Y
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| pubmed:pagination |
190403
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| pubmed:year |
2004
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| pubmed:articleTitle |
Collective modes and ballistic expansion of a fermi gas in the BCS-BEC crossover.
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| pubmed:affiliation |
NEST-INFM and Classe di Scienze, Scuola Normale Superiore, I-56126 Pisa, Italy.
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| pubmed:publicationType |
Journal Article
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