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Interband physics in an ultra-cold Fermi gas in an optical lattice | | J.-P. Martikainen
; E. Lundh
; T. Paananen
; | | Date: |
21 Apr 2008 | | Abstract: | We study a gas of strongly polarized cold fermions in an optical lattice when
the excited p-bands are populated. We derive the relevant Hamiltonian and
discuss the expected phase diagram for both repulsive and attractive
interactions. In the parameter regime covered here, checkerboard
anti-ferromagnetic ordering is found to be possible for repulsive interactions
while for attractive interactions, transitions between different types of
paired phases are predicted. | | Source: | arXiv, 0804.3280 | | Services: | Forum | Review | PDF | Favorites | |
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