Competing pairing propensities in twisted bilayer graphene

We employ a synopsis of random phase approximation (RPA) and functional renormalization group (fRG) to investigate twisted bilayer graphene based on a two-orbital effective model on the honeycomb lattice. Exploiting the ability of N-patch fRG to resolve the harmonic composition of a given superconducting instability channel, we develop a detailed profile of electronically mediated unconventional superconducting instabilities in twisted bilayer graphene, and highlight experimental signatures to distinguish between the resulting possible scenarios.