Stability of a trapped dipolar quantum gas
arXiv:1411.3817 · doi:10.1103/PhysRevA.91.013613
Abstract
We calculate the stability diagram for a trapped normal Fermi or Bose gas with dipole-dipole interactions. Our study characterizes the roles of trap geometry and temperature on the stability using Hartree-Fock theory. We find that exchange appreciably reduces stability, and that, for bosons, the double instability feature in oblate trapping geometries predicted previously is still predicted by the Hartree-Fock theory. Our results are relevant to current experiments with polar molecules and will be useful in developing strategies to obtain a polar molecule Bose-Einstein condensate or degenerate Fermi gas.
7 pages, 4 figures
References in corpus (17)
- A High Phase-Space-Density Gas of Polar Molecules
- Bose-Einstein condensation of chromium
- Bose-Einstein Condensation of Erbium
- Ultracold dense samples of dipolar RbCs molecules in the rovibrational and hyperfine ground state
- Quantum degenerate dipolar Fermi gas
- Stabilizing a purely dipolar quantum gas against collapse
- Radial and angular rotons in trapped dipolar gases
- All-Optical Production of Chromium Bose-Einstein Condensates
- Phase space deformation of a trapped dipolar Fermi gas
- Observation of Fermi surface deformation in a dipolar quantum gas
- Coherent collapse of a dipolar Bose-Einstein condensate for different trap geometries
- Finite temperature analysis of a quasi2D dipolar gas
- Critical Temperature of Weakly Interacting Dipolar Condensates
- Thermodynamics and coherence of a trapped dipolar Fermi gas
- Finite-temperature trapped dipolar Bose gas
- Magnetostriction and exchange effects in trapped dipolar Bose and Fermi gases
- A local exchange theory for trapped dipolar gases