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On the spin asymmetry of ground states in trapped two-component Fermi gases with repulsive interactions
Mathematical Physics, Lund Institute of Technology, Lund, Sweden.ORCID-id: 0000-0002-2630-7479
Mathematical Physics, Lund Institute of Technology, Lund, Sweden.
Mathematical Physics, Lund Institute of Technology, Lund, Sweden.
Mathematical Physics, Lund Institute of Technology, Lund, Sweden.
2007 (engelsk)Inngår i: Journal of Physics B: Atomic, Molecular and Optical Physics, ISSN 0953-4075, E-ISSN 1361-6455, Vol. 40, nr 13, s. 2653-2660Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

We examine the spin asymmetry of ground states for two-dimensional, harmonically trapped two-component gases of fermionic atoms at zero temperature with weakly repulsive short-range interactions. Our main result is that, in contrast to the three-dimensional case, in two dimensions a non-trivial spin-asymmetric phase can only be caused by the shell structure. A simple, qualitative description is given in terms of an approximate single-particle model, comparing well to the standard results of Hartree-Fock or direct diagonalization methods.

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Institute of Physics (IOP), 2007. Vol. 40, nr 13, s. 2653-2660
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URN: urn:nbn:se:oru:diva-65575DOI: 10.1088/0953-4075/40/13/010ISI: 000247578800012Scopus ID: 2-s2.0-34547463067OAI: oai:DiVA.org:oru-65575DiVA, id: diva2:1188766
Tilgjengelig fra: 2018-03-08 Laget: 2018-03-08 Sist oppdatert: 2018-03-15bibliografisk kontrollert

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