Topological superconductivity in an interacting type-II Weyl model*

The discovery of superconducting Weyl semimetals has sparked an intense effort to understand the connection between topology and correlations in these materials, specifically, the pairing behavior of emergent Weyl fermions. Here we study the effect of attractive interactions in a simple Weyl model using a combination of numerically exact auxiliary-field quantum Monte Carlo calculations and mean-field theory. Our model describes a type-II Weyl system, inspired by the electronic structure of MoTe₂, and we observe that the presence of extended interactions can give rise to topological superconducting states.