Free Expansion of a Weakly-interacting Dipolar Fermi Gas
Quantum Gases
2011-12-13 v3
Abstract
We theoretically investigate a polarized dipolar Fermi gas in free expansion. The inter-particle dipolar interaction deforms phase-space distribution in trap and also in the expansion. We exactly predict the minimal quadrupole deformation in the expansion for the high-temperature Maxwell-Boltzmann and zero-temperature Thomas-Fermi gases in the Hartree-Fock and Landau-Vlasov approaches. In conclusion, we provide a proper approach to develop the time-of-flight method for the weakly-interacting dipolar Fermi gas and also reveal a scaling law associated with the Liouville's theorem in the long-time behaviors of the both gases.
Keywords
Cite
@article{arxiv.0907.1757,
title = {Free Expansion of a Weakly-interacting Dipolar Fermi Gas},
author = {Takushi Nishimura and Tomoyuki Maruyama},
journal= {arXiv preprint arXiv:0907.1757},
year = {2011}
}