Pairing symmetry of interacting fermions on a twisted bilayer graphene superlattice
Pairing symmetry of interacting fermions on a twisted bilayer graphene superlattice
The pairing symmetry of an effective Hamiltonian for interacting fermions on a twisted bilayer graphene superlattice is studied with the determinant quantum Monte Carlo method. The model has the symmetry of a triangle lattice and a nearly-flat low energy band, features which underlie the magic-angle twisted bilayer graphene superlattice. We …