A cartoon showing Rydberg’s moir excitations in the WSe2/TBG heterostructure. Credit: IOP The Rydberg state is spread across a variety of physical platforms such as atoms, molecules, and solids. In particular, Rydberg excitons were highly excited Coulomb-bonded electron-hole pairs, first discovered in the semiconductor material Cu2Or in the 50s. In a study published in ScienceDr … Read more