Semi-quantum information splitting using GHZ-type states

Authors:
Yi-You Nie;Yuan-Hua Li;Zi-Sheng Wang
Affiliations:
Department of Physics, Jiangxi Normal University, Nanchang, China 330022 and Key Laboratory of Optoelectronic and Telecommunication of Jiangxi Province, Nanchang, China 330022 and State Key Labora ...;Department of Physics, Jiangxi Normal University, Nanchang, China 330022;Department of Physics, Jiangxi Normal University, Nanchang, China 330022 and Key Laboratory of Optoelectronic and Telecommunication of Jiangxi Province, Nanchang, China 330022
Venue:
Quantum Information Processing
Year:
2013

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Abstract

By using a generalized Greenberger---Horne---Zeilinger (GHZ) state in which is locally unitarily connected with standard GHZ state as a communication channel, semi-quantum key distribution is extended to study semi-quantum information splitting protocols for secret sharing of quantum information. In our scheme, quantum Alice splits arbitrary two, three and N-qubit states with two classical parties, Bob and Charlie, in a way that both parties are sufficient to reconstruct Alice's original states only under the condition of which she/he obtains the help from another one, but one of them cannot. The presented protocols are helpful for both secure against certain eavesdropping attacks and economical in processing of quantum information.