Electronic correlations in the normal state of twisted bilayer graphene

The discovery of insulating states, superconductivity and other broken symmetry states in magic angle twisted bilayer graphene and other moiré heterostructures has marked a new era in the research of correlated materials. In these systems, narrow bands can lead to an enhanced importance of interactions on the electronic properties both in symmetry broken and in non-ordered states. In this talk, we will explore the effect of correlations in the normal, non-ordered state, of twisted bilayer graphene, using dynamical mean field theory. We will show how the spectral weight is strongly reorganized due to correlations. This reorganization in the normal state may also have important consequences for the electronic properties of the ordered states.