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Thomas-Fermi ground state of dipolar fermions in a circular storage ring
University of Arizona.
Department of Physics and College of Optical Sciences, The University of Arizona, Tucson, Arizona 85721, USA.ORCID iD: 0000-0002-8049-2425
University of Arizona.
2006 (English)In: Physical Review A. Atomic, Molecular, and Optical Physics, ISSN 1050-2947, E-ISSN 1094-1622, Vol. 73, no 4, 043610Article in journal (Refereed) Published
Abstract [en]

Recent developments in the field of ultracold gases has led to the production of degenerate samples of polar molecules. These have large static electric-dipole moments, which in turn causes the molecules to interact strongly. We investigate the interaction of polar particles in waveguide geometries subject to an applied polarizing field. For circular waveguides, tilting the direction of the polarizing field creates a periodic inhomogeneity of the interparticle interaction. We explore the consequences of geometry and interaction for stability of the ground state within the Thomas-Fermi model. Certain combinations of tilt angles and interaction strengths are found to preclude the existence of a stable Thomas-Fermi ground state. The system is shown to exhibit different behavior for quasi-one-dimensional and three-dimensional trapping geometries.

Place, publisher, year, edition, pages
2006. Vol. 73, no 4, 043610
National Category
Atom and Molecular Physics and Optics
URN: urn:nbn:se:du-11208DOI: 10.1103/PhysRevA.73.043610ISI: 000237147700114OAI: diva2:565614
Available from: 2012-11-07 Created: 2012-11-07 Last updated: 2015-05-05Bibliographically approved

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Jääskeläinen, Markku
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