Thomas-Fermi ground state of dipolar fermions in a circular storage ring

O. Dutta, M. Jääskeläinen, Pierre Meystre

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

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.

Original languageEnglish (US)
Article number043610
JournalPhysical Review A
Volume73
Issue number4
DOIs
StatePublished - 2006

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fermions
ground state
geometry
interactions
Thomas-Fermi model
circular waveguides
electric moments
electric dipoles
molecules
inhomogeneity
dipole moments
trapping
waveguides
causes
gases

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Physics and Astronomy(all)

Cite this

Thomas-Fermi ground state of dipolar fermions in a circular storage ring. / Dutta, O.; Jääskeläinen, M.; Meystre, Pierre.

In: Physical Review A, Vol. 73, No. 4, 043610, 2006.

Research output: Contribution to journalArticle

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