Three-party quantum secret sharing based on phase shift operation

摘要

An efficient three-party quantum secret sharing scheme is proposed. The dealer uses the phase shift operation to encode the secret information into some EPR pairs. The members use the phase shift operation to decode the EPR pairs, and measure the EPR pairs to reconstruct the secret. Our scheme does not need the BB84 protocol or the decoy particles to protect the transmitted particles, and can use the phase shift operation to prevent the attacker from stealing secret information from the transmitted particles. So all the particles can be used to bring the secret information, and the utilization efficiency of the particles of 100% can be achieved. With the prevent technology, our scheme is more practical than the existing schemes.