Competition between Normal Superfluidity and Larkin-Ovchinnikov Phases of Polarized Fermi Gases in Elongated Traps

J. Pei, J. Dukelsky and WN, arXiv:1005.3239We study cold polarized atoms in elongated traps at unitarity. The self-consistent BdG equations of superfluid DFT are solved using the coordinate- space axial solver hfb-ax, based on B-splines, which has been demonstrated to provide precise results at large deformations. We use SLDA and ASLDA EDFs proposed by Bulgac and Forbes

Initial conditions for the pairing potential at large distances:

SLDAP=0.37=20N=2000

Many DFT solutions withvery close energies andchemical potentials

LO state is a wave packet