1202.3935 (Hong Lu et al.)

Expansion of 1D polarized superfluids: The FFLO state reveals itself    [PDF]

Hong Lu, L. O. Baksmaty, C. J. Bolech, Han Pu

We study the expansion dynamics of a one dimensional polarized Fermi gas
after sudden release from confinement using both the mean-field Bogoliubov-de
Gennes and the numerically exact Time-Evolving Block Decimation methods. Our
results show that experimentally observable spin density modulations directly
related to the presence of a Fulde-Ferrel-Larkin-Ovchinnikov (FFLO) state
develop during the expansion of the cloud, providing incontrovertible evidence
of this long-sought state.

View original: http://arxiv.org/abs/1202.3935