Equilibrium properties of trapped dipolar Fermi gases at finite temperatures

Journal Article · Tue Jun 15 00:00:00 EDT 2010 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.81.063624· OSTI ID:21439525

Endo, Yuki; Nikuni, Tetsuro ^[1]; Miyakawa, Takahiko ^[2]

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1. Department of Physics, Faculty of Science, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601 (Japan)
2. Faculty of Education, Aichi University of Education, 1 Hirosawa, Igaya-cho, Kariya, Aichi 448-8542 (Japan)

We study the equilibrium properties of dipolar Fermi gases at finite temperatures. We introduce a variational ansatz for the phase-space distribution function that can describe the deformation in both real and momentum space. The effect of dipole-dipole interactions on thermal equilibrium is discussed, with particular emphasis on the deformation in momentum space. We examine the stability of the system by varying the temperature, trap aspect ratio, and dipole moment. In addition, we discuss how the deformation in both real and momentum space can be observed in the high-temperature regime, which is relevant to the current experiment at JILA (Institute for Laboratory Astrophysics) [K. K. Ni et al., Science 322, 231 (2008)].

• OSTI ID: 21439525
• Journal Information: Physical Review. A, Vol. 81, Issue 6; Other Information: DOI: 10.1103/PhysRevA.81.063624; (c) 2010 The American Physical Society; ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ASPECT RATIO
DEFORMATION
DIPOLE MOMENTS
DIPOLES
DISTRIBUTION FUNCTIONS
FERMI GAS
PHASE SPACE
PHASE STABILITY
THERMAL EQUILIBRIUM
TRAPPING
TRAPS
VARIATIONAL METHODS
CALCULATION METHODS
DIMENSIONLESS NUMBERS
EQUILIBRIUM
FUNCTIONS
MATHEMATICAL SPACE
MULTIPOLES
SPACE
STABILITY