摘要
The Rydberg state is widely present in a variety of physical platforms such as atoms,molecules,and solids.In particular,the Rydberg excitons are highly excited Coulomb bound states of electronhole pairs,first discovered in the semiconductor material Cu2O in the 1950s.Their solid-state nature,in conjunction with the large dipole moments,strong mutual interactions,and significantly enhanced interactions with the surroundings,holds promises for a wide range of applications in sensing,quantum optics,and quantum simulation.However,compared with their atomic counterparts,namely Rydberg atoms that have been widely explored in recent years,the exploitation of Rydberg excitons is far from reaching their full potential.
