Density wave instability in a 2D dipolar Fermi gas
Quantum Gases
2015-05-18 v1
Abstract
We consider a uniform dipolar Fermi gas in two-dimensions (2D) where the dipole moments of fermions are aligned by an orientable external field. We obtain the ground state of the gas in Hartree-Fock approximation and investigate RPA stability against density fluctuations of finite momentum. It is shown that the density wave instability takes place in a broad region where the system is stable against collapse. We also find that the critical temperature can be a significant fraction of Fermi temperature for a realistic system of polar molecules.
Cite
@article{arxiv.1003.2029,
title = {Density wave instability in a 2D dipolar Fermi gas},
author = {Yasuhiro Yamaguchi and Takaaki Sogo and Toru Ito and Takahiko Miyakawa},
journal= {arXiv preprint arXiv:1003.2029},
year = {2015}
}
Comments
10 figures