Memory-free quantum secret sharing protocol with collective detection

At the current stage, quantum secret sharing (QSS) protocols still face many challenges and difficulties in practical application, including the expensive cost of quantum devices and the difficulties of quantum memory technology development. In order to solve the problem of expensive quantum devices, some scholars proposed the collective detection strategy, which cuts the use of quantum devices and increases communication efficiency. However, the use of quantum memory is usually still inevitable in these QSS protocols with collective detection. In this paper, we propose a newly designed (n,n) -threshold multiparty quantum secret sharing protocol with collective detection. And in this protocol, the sender Alice will measure the agents' qubits as soon as she receives them, avoiding the use of quantum memory. Considering the difficulties in the development of quantum memory, our protocol is more promising for practical application than the previous QSS protocol with collective detection. Additionally, we also analyze communication security and discuss measurement, the used quantum devices, and the communication efficiency of this new formalism.

Automated summary

At the current stage, quantum secret sharing (QSS) protocols are still facing challenges in practical application due to the expensive cost of quantum devices and the difficulties in quantum memory technology development. This paper proposes a newly designed (n,n)-threshold multiparty quantum secret sharing protocol with collective detection, which eliminates the need for quantum memory by having the sender immediately measure the agents' qubits upon receipt. This protocol shows more promise for practical application compared to previous QSS protocols with collective detection, considering the difficulties in quantum memory development. Communication security, measurement, quantum devices used, and communication efficiency are also analyzed in this study.