Non-standard pairing in asymmetric trapped Fermi gases

Details Non-standard pairing in asymmetric trapped Fermi gases Non-standard pairing in asymmetric trapped Fermi gases

2005-04-15

arxiv.org/abs/cond-mat/0504391v2

Phys.Rev. A72 (2005) 025601

Physics

Condensed Matter

Other Condensed Matter

4 pages, 4 figures; v2: reference added

Scientific paper

10.1103/PhysRevA.72.025601

We study an ultracold trapped Fermi gas of atoms in two hyperfine states with unequal populations. In this situation the usual BCS pairing is suppressed and non-standard pairing mechanisms become important. These are treated by solving the Bogoliubov-de Gennes equations, which at the same time correctly take into account the finite size of the trapped system. We find results which can be viewed as generalization of the LOFF phase to finite systems.

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