Exactly solvable model of Fermi arcs and pseudogap

We introduce a very simple and exactly solvable model that supports Fermi arcs in its ground state and excitation spectrum. These arcs come in pairs, and merge into what we call a pseudo-Fermi surface along which fermions are gapped; this fermion gap is naturally identified as a pseudogap. A comparison will be made with the phenomenology of high-temperature cuprate superconductors.

Automated summary

The model introduced supports Fermi arcs in its ground state and excitation spectrum, which come in pairs and merge into a pseudo-Fermi surface. Along this surface, fermions are gapped, with the fermion gap being identified as a pseudogap. A comparison will be made with the phenomenology of high-temperature cuprate superconductors.