Sender-controlled measurement-device-independent multiparty quantum communication

Multiparty quantum communication is an important branch of quantum networks. It enables private information transmission with information-theoretic security among legitimate parties. We propose a sender-controlled measurement-device-independent multiparty quantum communication protocol. The sender Alice divides a private message into several parts and delivers them to different receivers for secret sharing with imperfect measurement devices and untrusted ancillary nodes. Furthermore, Alice acts as an active controller and checks the security of quantum channels and the reliability of each receiver before she encodes her private message for secret sharing, which makes the protocol convenient for multiparity quantum communication.

Automated summary

Multiparty quantum communication is a vital branch of quantum networks, allowing secure transmission of private information among legitimate parties. The proposed sender-controlled measurement-device-independent protocol ensures security and reliability in secret sharing by checking quantum channel security and receiver reliability before encoding private messages. It is a convenient solution for multiparty quantum communication.