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arXiv · 1307.1639

Unconventional superfluidity in quasi-one-dimensional systems

Shun Uchino·Akiyuki Tokuno·Thierry Giamarchi
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Abstract

We show that an unconventional superfluid triggered by spin-orbit coupling is realized for repulsively interacting quasi-one-dimensional fermions. A competition between spin-singlet and -triplet pairings occurs due to the breaking of inversion symmetry. We show that both superfluid correlations decay algebraically with the same exponent except for special coupling constants for which a dominant superfluid is controlled by the spin-orbit coupling. We also discuss a possible experiment to observe such phases with cold atoms.

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Shun Uchino, Akiyuki Tokuno, Thierry Giamarchi. 2014-02-19. Unconventional superfluidity in quasi-one-dimensional systems. https://doi.org/10.1103/physreva.89.023623

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