Interacting electrons and quantum geometry in rhombohedral graphene

Crystalline few-layer rhombohedral graphene has been theoretically predicted and experimentally realized as a new paradigm for strongly correlated electron systems, featuring simple chemistry, rich physics, low disorder, and high tunability. In this talk, we will discuss recent advancements in both charge-neutral and lightly doped rhombohedral graphene, studied in suspended and hBN-encapsulated devices, with and without hBN alignment-induced moiré structures. Special attention will be given to the emergence of integer and fractional quantum anomalous Hall states and the crucial roles played by quantum geometry.