Fulde-Ferrell-Larkin-Ovchinnikov vortex lattice states in fermionic cold-atom systems

Abstract

Condensation of atom pairs with finite total momentum is expected in a portion of the phase diagram of a two-component fermionic cold-atom system. This unusual condensate can be identified by detecting the exotic higher-Landau-level (HLL) vortex lattice states it can form when rotated. With this motivation, we have solved the linearized gap equations of a polarized cold-atom system in a Landau-level basis to predict experimental circumstances under which HLL vortex lattice states occur. © 2006 The American Physical Society.