Abstract
We present phase diagrams for a polarized Fermi gas in an optical lattice as a function of temperature, polarization, and lattice filling factor. We consider the Fulde-Ferrel-Larkin-Ovchinnikov (FFLO), Sarma or breached pair, and BCS phases, and the normal state and phase separation. We show that the FFLO phase appears in a considerable portion of the phase diagram. The diagrams have two critical points of different nature. We show how various phases leave clear signatures to momentum distributions of the atoms which can be observed after time of flight expansion.
Original language | English |
---|---|
Article number | 120403 |
Pages (from-to) | 1-4 |
Number of pages | 4 |
Journal | Physical Review Letters |
Volume | 99 |
Issue number | 12 |
DOIs | |
Publication status | Published - 19 Sep 2007 |
MoE publication type | A1 Journal article-refereed |