New quantum repeaters could enable a scalable quantum internet

Essential component: Artist’s impression of an elementary link of the USTC quantum repeater based on two absorptive quantum memories, which are the sandwich-like structures. (Courtesy: Wang Guoyan and Ma Yanbing) Quantum repeaters that can store multiplexed signals; provide heralded signals of entanglement; and operate at telecommunications wavelengths have been developed by two independent research teams….