Terahertz photocurrent probe of quantum geometry and interactions in
magic-angle twisted bilayer graphene
Terahertz photocurrent probe of quantum geometry and interactions in
magic-angle twisted bilayer graphene
Moir\'e materials represent strongly interacting electron systems bridging topological and correlated physics. Despite significant advances, decoding wavefunction properties underlying the quantum geometry remains challenging. Here, we utilize polarization-resolved photocurrent measurements to probe magic-angle twisted bilayer graphene, leveraging its sensitivity to the Berry connection that encompasses quantum "textures" of electron wavefunctions. …