Study of a degenerate dipolar Fermi gas of161Dy atoms

2012/10/31 by Sadhan K. Adhikari · 1 citation
Physics and Astronomy · #Anisotropy #Atomic physics #Axial symmetry #Cold Atom Physics and Bose-Einstein Condensates #Condensed matter physics #Degenerate energy levels #Dipole #Fermi Gamma-ray Space Telescope #Fermi gas #Molecular physics #Physics #Quantum mechanics #Quantum, superfluid, helium dynamics #Strong Light-Matter Interactions #Thermodynamics #Trapping #Yield (engineering) #cond-mat.quant-gas

paper · pdf · doi:10.1088/0953-4075/45/23/235303

published as J. Phys B 45 (2012) 235303

arxiv created 2012/11/22 · openalex publication_date 2012/11/22 · arxiv updated 2015/06/11 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/06

Abstract

We study the properties of a single-component (spin polarized) degenerate dipolar Fermi gas of 161 Dy atoms using a hydrodynamic description. Under axially-symmetric trapping we suggest reduced one- (1D) and two-dimensional (2D) descriptions for the cigar and disc shapes, respectively. In addition to a complete numerical solution of the hydrodynamic model we also consider a variational approximation. For a trapped system under appropriate conditions, the variational approximation as well as the reduced 1D and 2D models are found to yield results for the shape, size and chemical potential of the system in agreement with the full numerical solution of the three-dimensional (3D) model. For the uniform system we consider anisotropic sound propagation in 3D. An analytical result for anisotropic sound propagation in a uniform dipolar degenerate Fermi gas is found to be in agreement with the results of numerical simulation in 3D.

Citations

• Cold Dipolar Gases in Quasi-One-Dimensional Geometries
• Effective wave equations for the dynamics of cigar-shaped and disk-shaped Bose condensates
• Stabilization of a purely dipolar quantum gas against collapse
• Component separation in harmonically trapped boson-fermion mixtures
• Superfluid Bose-Fermi mixture from weak coupling to unitarity
• C programs for solving the time-dependent Gross–Pitaevskii equation in a fully anisotropic trap
• Critical Superfluid Velocity in a Trapped Dipolar Gas
• Stability and free expansion of a dipolar Fermi gas
• Ground state and elementary excitations of single and binary Bose-Einstein condensates of trapped dipolar gases
• Vortices and superfluidity in a strongly interacting Fermi gas
• Emergence of a molecular Bose–Einstein condensate from a Fermi gas
• Structure formation during the collapse of a dipolar atomic Bose-Einstein condensate
• Observation of Fermi Pressure in a Gas of Trapped Atoms
• Thomas-Fermi versus one- and two-dimensional regimes of a trapped dipolar Bose-Einstein condensate
• d-Wave Collapse and Explosion of a Dipolar Bose-Einstein Condensate
• Fortran programs for the time-dependent Gross-Pitaevskii equation in a fully anisotropic trap
• Surface effects in the unitary Fermi gas
• The physics of dipolar bosonic quantum gases
• Quantum Degenerate Dipolar Fermi Gas
• Stability of quasi-two-dimensional Bose-Einstein condensates with dominant dipole-dipole interactions
• Zur Theorie der Kernmassen

Cited by

• Time-of-flight expansion of trapped dipolar Fermi gases: From the collisionless to the hydrodynamic regime