Three-party quantum key agreement protocol based on logical four-particle Cluster state to resist collective noise

Collective noise is an influential factor that cannot be ignored in quantum communication, and the efficiency of existing quantum key agreement protocols under collective noise is relatively low. In order to improve the efficiency, this paper proposes two three-party quantum key agreement protocols based on the logical four-particle cluster state, which shows that the efficiency is 34.78%, higher than other protocols. Additionally, security analysis also demonstrates that proposed protocols can withstand external attacks and participant attacks.

Automated summary

This paper proposes two three-party quantum key agreement protocols based on the logical four-particle cluster state, showing improved efficiency and demonstrated security against attacks.