Revisiting Anderson-Higgs mechanism: application of Lieb-Schultz-Mattis theorem

Abstract

We consider an electron model of superconductivity on a three-dimensional lattice where there are on-site attractive Hubbard interaction and long-range repulsive Coulomb interaction. It is claimed that fully gapped $s$-wave superconductivity within this model, if present, exhibits spontaneous translation symmetry breaking possibly related to a charge order. Our discussions are based on an application of the Lieb-Schultz-Mattis theorem under some physical assumptions. The inconsistency between the proposed supersolid and experiments can impose some constraints on a reasonable choice of a theoretical model.

6 pages, Proceedings of SCES 2020

References in corpus (2)

• Supersolid hardcore bosons on the triangular lattice
• Topological degeneracy of non-Abelian states for dummies