A weakly-interacting many-body system of Rydberg polaritons based on electromagnetically induced transparency - Bongjune Kim; Ko-Tang Chen; Shih-Si Hsiao; Sheng-Yang Wang; Kai-Bo Li; Julius Ruseckas; Gediminas Juzeliūnas; Teodora Kirova; Marcis Auzinsh; Ying-Cheng Chen; Yong-Fan Chen; Ite A. Yu (Communications Physics, 2021)