Abstract:

Drawing idea from the quantum secure direct communication (QSDC), a novel quantum secret sharing (QSS) scheme with high efficiency based on Bell states was proposed. In this scheme, the sender Alice needed no longer share a joint key between her and the two receivers, Bob and Charlie, as well as used the joint key to transmit her message. Alice shared her secret message with Bob and Charlie directly. One Bell state could be used to share two bits message. Investigation showed that the scheme is secure.

Key words: quantum secret sharing, quantum secure direct communication, dense coding, Bell states