Condensate fraction of a resonant Fermi gas with spin-orbit coupling in three and two dimensions

Details Condensate fraction of a resonant Fermi gas with spin-orbit coupling in three and two dimensions Condensate fraction of a resonant Fermi gas with spin-orbit coupling in three and two dimensions

2011-08-04

arxiv.org/abs/1108.1132v3

Phys. Rev. A 84, 033633 (2011)

Physics

Condensed Matter

Quantum Gases

6 pages, 8 figures, accepted for publication in Phys. Rev. A

Scientific paper

10.1103/PhysRevA.84.033633

We study the effects of laser-induced Rashba-like spin-orbit coupling along the BCS-BEC crossover of a Feshbach resonance for a two-spin-component Fermi gas. We calculate the condensate fraction in three and two dimensions and find that this quantity characterizes the crossover better than other quantities, like the chemical potential or the pairing gap. By considering both the singlet and the triplet pairings, we calculate the condensate fraction and show that a large enough spin-orbit interaction enhances the singlet condensate fraction in the BCS side while suppressing it on the BEC side.

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