One-dimensional fermion pairing

Daniel E. Sheehy

We study two species of attractively interacting fermion confined to a quasi-one-dimensional geometry, in the presence of a strong scattering potential that can couple, selectively, to one or both species. We show that the fermion density distribution in the presence of such a spin-selective scattering potential reflects the pairing spin gap of the fermions.

S. Mazumdar

M. T. Béal-Monod

T c values for triplet pairing superconductivity can be much higher in quasi-two-dimensional nearly magnetic fermion systems than in three-dimensional ones.

Vincent Rivasseau

R. Z. Bariev, Andreas Klümper, J. Zittartz

A new one-dimensional model of strongly correlated fermions on N sublattices with density-density interaction and pair hopping between sublattices is formulated and solved exactly by the Bethe ansatz method. The density-density and pair correlation functions are calculated which manifest superconducting properties for N ⩾ 3.

Martin W. Zwierlein