Robust valley-polarized excitonic Mott states and doublons enabled by stacking-controlled moiré geometry

Hao-Tien Chu, Shou-Chien Chiu, Meng-Che Yeh +12

Atomically-thin moiré superlattices offer an optically accessible platform for interacting bosons, where strong onsite repulsion $U_{xx}$ suppresses double occupancy and supports…