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Supershell structures and pairing in ultracold trapped Fermi gases
Mathematical Physics, Lund Institute of Technology, Lund, Sweden.ORCID iD: 0000-0002-2630-7479
University of Southern Denmark, Odense, Denmark.
2007 (English)In: Physical Review A. Atomic, Molecular, and Optical Physics, ISSN 1050-2947, E-ISSN 1094-1622, Vol. 76, no 2, article id 021601Article in journal (Refereed) Published
Abstract [en]

We calculate level densities and pairing gaps for an ultracold dilute gas of fermionic atoms in harmonic traps under the influence of mean field and anharmonic quartic trap potentials. Supershell nodes, which were found in Hartree-Fock calculations, are calculated analytically within periodic orbit theory as well as from WKB calculations. For attractive interactions, the underlying level densities are crucial for pairing and supershell structures in gaps are predicted.

Place, publisher, year, edition, pages
American Physical Society, 2007. Vol. 76, no 2, article id 021601
National Category
Other Physics Topics Condensed Matter Physics Atom and Molecular Physics and Optics
Identifiers
URN: urn:nbn:se:oru:diva-65574DOI: 10.1103/PhysRevA.76.021601ISI: 000249154900004Scopus ID: 2-s2.0-34547692553OAI: oai:DiVA.org:oru-65574DiVA, id: diva2:1188762
Available from: 2018-03-08 Created: 2018-03-08 Last updated: 2018-03-15Bibliographically approved

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Ögren, Magnus

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