| Thème(s) : |
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Physique/Matière Condensée/Autre
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| Titre : |
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Pair-Breaking in Rotating Fermi Gases |
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| Auteur : |
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M. Urban1, P. Schuck1, 2 |
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| Laboratoire : |
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| Résumé : |
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We study the pair-breaking effect of rotation on a cold Fermi gas in the BCS-BEC crossover region. In the framework of BCS theory, which is supposed to be qualitatively correct at zero temperature, we find that in a trap rotating around a symmetry axis, three regions have to be distinguished: (A) a region near the rotational axis where the superfluid stays at rest and where no pairs are broken, (B) a region where the pairs are progressively broken with increasing distance from the rotational axis, resulting in an increasing rotational current, and (C) a normal-fluid region where all pairs are broken and which rotates like a rigid body. Due to region B, density and current do not exhibit any discontinuities. |
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| Type de publication : |
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Pré-publications |
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Date de publication
ou d'écriture : |
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2008 |
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| Classification PACS : |
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03.75.Kk,03.75.Ss,67.40.Bz |
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| Commentaire : |
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4 pages, 2 figures |
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