Exotic superfluid states of lattice fermions in elongated traps

We present real-space dynamical mean-field theory calculations for attractively interacting fermions in three-dimensional lattices with elongated traps. The critical polarization is found to be 0.8, regardless of the trap elongation. Below the critical polarization, we find unconventional superfluid...

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Bibliographic Details
Published in:Physical review letters 2011-03, Vol.106 (9), p.095301-095301, Article 095301
Main Authors: Kim, D-H, Kinnunen, J J, Martikainen, J-P, Törmä, P
Format: Article
Language:English
Subjects:
CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
DEFORMATION
ELONGATION
FERMIONS
MEAN-FIELD THEORY
POLARIZATION
SUPERFLUIDITY
THREE-DIMENSIONAL CALCULATIONS
TRAPS
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Summary:We present real-space dynamical mean-field theory calculations for attractively interacting fermions in three-dimensional lattices with elongated traps. The critical polarization is found to be 0.8, regardless of the trap elongation. Below the critical polarization, we find unconventional superfluid structures where the polarized superfluid and Fulde-Ferrell-Larkin-Ovchinnikov-type states emerge across the entire core region.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.106.095301