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Title
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Anderson-Bogoliubov collective excitations in superfluid Fermi gases at nonzero temperatures
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Author
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Abstract
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| The Anderson-Bogoliubov branch of collective excitations in a condensed Fermi gas is treated using the effective bosonic action of Gaussian pair fluctuations. The spectra of collective excitations are treated for finite temperature and momentum throughout the BCS-BEC crossover. The obtained spectra explain, both qualitatively and quantitatively, recent experimental results on Goldstone modes in atomic Fermi superfluids. |
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Language
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English
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Source (journal)
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Journal of low temperature physics. - New York
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Source (book)
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23rd International Symposium on Quantum Fluids and Solids (QFS), JUL 25-31, 2018, Univ Tokyo, Ito Int Res Ctr, Univ Tokyo, Ito Int Res Ctr, Tokyo, JAPAN
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Publication
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New york
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Springer/plenum publishers
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2019
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ISSN
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0022-2291
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DOI
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10.1007/S10909-019-02160-3
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Volume/pages
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196
:1-2
(2019)
, p. 102-110
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ISI
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000471633000012
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Full text (Publisher's DOI)
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Full text (publisher's version - intranet only)
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