摘要
One of the most exciting perspectives of quantum technology is the realization of quantum internet[1],where information is distributed and shared over many distant sites,connected by fibers or satellite-based repeaters,with indestructible encryption promised by the fundamental laws of quantum mechanics(QM).Einstein-Podolsky-Rosen(EPR)steer-ing in multipartite scenarios has been recognized as a reliable resource for the implementation of secure multiuser quantum cryptography and teleportation,even when some users(or their devices)of the network are malicious or untrusted.
基金
This work was supported by the National Natural Science Founda-tion of China(Grants No.11622428,No.61675007,and No.11975026,No.12004011)
the National Key R&D Program of China(Grants No.2016YFA0301302,No.2018YFB1107205)
the Key R&D Program of Guangzhou Province(Grant No.2018B030329001)
the Beijing Nat-ural Science Foundation(Grant No.Z190005).
