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

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.

Authors:
; ;  [1]
  1. Department of Physics and College of Optical Sciences, University of Arizona, Tucson, Arizona 85721 (United States)
Publication Date:
OSTI Identifier:
20787145
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. A; Journal Volume: 73; Journal Issue: 4; Other Information: DOI: 10.1103/PhysRevA.73.043610; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS; ELECTRIC DIPOLE MOMENTS; FERMIONS; GASES; GEOMETRY; GROUND STATES; MOLECULES; ONE-DIMENSIONAL CALCULATIONS; PERIODICITY; STABILITY; STORAGE RINGS; THOMAS-FERMI MODEL; THREE-DIMENSIONAL CALCULATIONS; TRAPPING; WAVEGUIDES

Citation Formats

Dutta, O., Jaeaeskelaeinen, M., and Meystre, P. Thomas-Fermi ground state of dipolar fermions in a circular storage ring. United States: N. p., 2006. Web. doi:10.1103/PHYSREVA.73.0.
Dutta, O., Jaeaeskelaeinen, M., & Meystre, P. Thomas-Fermi ground state of dipolar fermions in a circular storage ring. United States. doi:10.1103/PHYSREVA.73.0.
Dutta, O., Jaeaeskelaeinen, M., and Meystre, P. Sat . "Thomas-Fermi ground state of dipolar fermions in a circular storage ring". United States. doi:10.1103/PHYSREVA.73.0.
@article{osti_20787145,
title = {Thomas-Fermi ground state of dipolar fermions in a circular storage ring},
author = {Dutta, O. and Jaeaeskelaeinen, M. and Meystre, P.},
abstractNote = {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.},
doi = {10.1103/PHYSREVA.73.0},
journal = {Physical Review. A},
number = 4,
volume = 73,
place = {United States},
year = {Sat Apr 15 00:00:00 EDT 2006},
month = {Sat Apr 15 00:00:00 EDT 2006}
}
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