Theory of Fermionic superfluid with SU(2)xSU(6) symmetry
Quantum Gases
2015-05-27 v3 Superconductivity
Abstract
We study theoretically interspecies Cooper pairing in a fermionic system with SU(2)xSU(6) sym- metry. We show that, with suitable unitary transformations, the order parameter for the ground state can be reduced to only two non-vanishing complex components. The ground state has a large degeneracy. We find that while some Goldstone modes have linear dispersions, others are quadratic at low frequencies. We compare our results with the case of SU(N).
Keywords
Cite
@article{arxiv.1101.1714,
title = {Theory of Fermionic superfluid with SU(2)xSU(6) symmetry},
author = {S. -K. Yip},
journal= {arXiv preprint arXiv:1101.1714},
year = {2015}
}
Comments
extended version; include comparison with SU(N)