Fermi surface of a trapped dipolar Fermi gas
arXiv:0907.2804 · doi:10.1103/PhysRevA.80.053614
Abstract
Under the framework of the semiclassical theory, we investigate the equilibrium-state properties of a spin polarized dipolar Fermi gas through full numerical calculation. We show that the Fermi surfaces in both real and momentum spaces are stretched along the attractive direction of dipolar interaction. We further verify that the deformed Fermi surfaces can be well approximated by ellipsoids. In addition, the deformation parameters slightly depend on the local real- and momentum-space densities. We also study the interaction strength dependence of the energy and real- and momentum-space densities. By comparing them with variational results, we find that the ellipsoidal ansatz usually generates accurate results for weak dipolar interaction, while under strong dipolar interaction limit, notable discrepancy can be observed. Finally, we map out the stability boundary of the system.
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Cited by in corpus (29)
- Dipolar physics: A review of experiments with magnetic quantum gases
- Tuning the dipole-dipole interaction in a quantum gas with a rotating magnetic field
- Density wave instability in a 2D dipolar Fermi gas
- Singlet and triplet BCS pairs in a gas of two-species fermionic polar molecules
- Supersolid Phase of Cold Fermionic Polar Molecules in 2D Optical Lattices
- Collective Motion of Polarized Dipolar Fermi Gases in the Hydrodynamic Regime
- Thermodynamic properties of a dipolar Fermi gas
- Thermodynamics and coherence of a trapped dipolar Fermi gas
- Spin-orbit coupled Fermi liquid theory of ultra-cold magnetic dipolar fermions
- Ultra-cold Fermi gases with resonant dipole-dipole interaction
- Fermion Pairing across a Dipolar Interaction Induced Resonance
- s-Wave Scattering Resonances Induced by Dipolar Interactions of Polar Molecules
- Equilibrium Properties of a Trapped Dipolar Fermion at Finite Temperatures
- Magnetostriction and exchange effects in trapped dipolar Bose and Fermi gases
- Anisotropic Superfluidity in the Two-Species Polar Fermi Gas
- Correlation energy of a homogeneous dipolar Fermi gas
- Dynamical properties of a trapped dipolar Fermi gas at finite temperature
- Ground state of an ultracold Fermi gas of tilted dipoles in elongated traps
- Stability and collapse of fermions in a binary dipolar boson-fermion 164Dy-161Dy mixture
- Ground state of a two component dipolar Fermi gas in a harmonic potential
- Stability of a trapped dipolar quantum gas
- Competing many-body instabilities in two-dimensional dipolar Fermi gases
- Quadrupole oscillation in a dipolar Fermi gas: hydrodynamic vs collisionless regime
- Stability of trapped degenerate dipolar Bose and Fermi gases
- A local exchange theory for trapped dipolar gases
- Multipolar Fermi-surface deformation in a Rydberg-dressed Fermi gas with long-range anisotropic interactions
- Dipolar fermions in a multilayer geometry
- Interplay between shell structure and trap deformation in dipolar fermi gases
- Thermal-assisted Anisotropy and Thermal-driven Instability in the Superfluidity state of Two-Species Polar Fermi Gas