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Second sound and the superfluid fraction in a Fermi gas with resonant interactions

โœ Scribed by Sidorenkov, Leonid A.; Tey, Meng Khoon; Grimm, Rudolf; Hou, Yan-Hua; Pitaevskii, Lev; Stringari, Sandro


Book ID
120338669
Publisher
Nature Publishing Group
Year
2013
Tongue
English
Weight
651 KB
Volume
498
Category
Article
ISSN
0028-0836

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Excitations in the BCSโ€“BEC crossover reg
โœ Yoji Ohashi ๐Ÿ“‚ Article ๐Ÿ“… 2006 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 243 KB

We investigate single-particle excitations at T = 0 in the BCS-BEC crossover regime of a superfluid Fermi gas. We solve the Bogoliubov-de Gennes equations in a trap, including a tunable pairing interaction associated with a Feshbach resonance. We show that the single-particle energy gap E g is domin