Magnetization and collective excitations of a magnetic dipole fermion gas
arXiv:1306.2078 · doi:10.7566/JPSJ.82.124004
Abstract
The ground states and collective excitations of trapped Fermion gases consisting of atoms with magnetic dipole moment are studied using a time-dependent density-matrix approach. The advantages of the density-matrix approach are that one-body and two-body observables are directly calculated using one-body and two-body density matrices and that it has a clear relation to the Hartree-Fock (HF) and time-dependent HF theory. The HF calculations show the magnetization of the gases when the dipole-dipole interaction is strong. It is shown that the tensor properties of the dipole-dipole interaction are revealed in the excitation modes associated with spin degrees of freedom.
9 pages, 16 figures
References in corpus (7)
- A Strongly Dipolar Bose-Einstein Condensate of Dysprosium
- Quantum degenerate dipolar Fermi gas
- Chiral Rashba spin textures in ultra-cold Fermi gases
- Strongly Correlated States of Ultracold Rotating Dipolar Fermi Gases
- Ordered structures in rotating ultracold Bose gases
- Spin-orbit coupled Fermi liquid theory of ultra-cold magnetic dipolar fermions
- Spontaneous generation of spin-orbit coupling in magnetic dipolar Fermi gases