http://www.cnr.it/ontology/cnr/individuo/prodotto/ID2109
Dark solitons in a superfluid Fermi gas (Articolo in rivista)
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- Label
- Dark solitons in a superfluid Fermi gas (Articolo in rivista) (literal)
- Anno
- 2007-01-01T00:00:00+01:00 (literal)
- Alternative label
Antezza, M; Dalfovo, F; Pitaevskii, LP; Stringari, S (2007)
Dark solitons in a superfluid Fermi gas
in Physical review. A
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Antezza, M; Dalfovo, F; Pitaevskii, LP; Stringari, S (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
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- ISI Web of Science (WOS) (literal)
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- Univ Trent, Dipartimento Fis, I-38050 Trento, Italy; CNR, INFM BEC, I-38050 Trento, Italy; PL Kapitsa Phys Problems Inst, Moscow 119334, Russia (literal)
- Titolo
- Dark solitons in a superfluid Fermi gas (literal)
- Abstract
- We investigate the behavior of dark solitons in a superfluid Fermi gas along the BCS-BEC crossover by solving the Bogoliubov-de Gennes equations and looking for real and odd solutions for the order parameter. We show that in the resonance unitary region, where the scattering length is large, the density profile of the soliton has a deep minimum, differently from what happens in the BCS regime. The superfluid gap is found to be significantly quenched by the presence of the soliton due to the occurrence of Andreev fermionic bound states localized near the nodal plane of the order parameter. (literal)
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