Generalized quantum state sharing of the arbitrary two particles state

Abstract

This paper has proposed a generalized quantum state sharing protocol of an arbitrary two-particle state using non-maximally GHZ states and generalized Bell state measurement. The sender Alice performs two-particle generalized Bell state measurements on her two particles in the state sharing process and the controller takes measurements on his particles and transfers the quantum information to the receiver with entanglement swapping by the cooperation of the other agents. It is found that the use of nonmaximally entangled state in quantum state sharing has enabled the secure sharing of the quantum state.