Two-Qubit Quantum State Sharing Protocol Based on Bell State.

Owing to the disadvantages of low communication efficiency, high measuring complexity and implementation difficulties in the existing quantum state sharing protocols, an efficient and simple three-party deterministic quantum state sharing protocol based on Bell states is proposed. During the procession of the protocol, only Bell-state measurements is used and the communication efficiency is improved obviously, hence, the proposed protocol is easily realized in physical experiment and its successful probabilities be all 100%. On the other hand, the protocol is generalized from three parties to multiple parties, and the feasibility of the scheme is illustrated by taking the four-party quantum state sharing as an example. [ABSTRACT FROM AUTHOR]