Multiparty quantum secret sharing based on the improved Boström–Felbinger protocol

✍ Scribed by Zhan-jun Zhang; Gan Gao; Xin Wang; Lian-fang Han; Shou-hua Shi

• Publisher: Elsevier Science
• Year: 2007
• Tongue: English
• Weight: 219 KB
• Volume: 269
• Category: Article
• ISSN: 0030-4018
• DOI: 10.1016/j.optcom.2006.08.021

✦ Synopsis

Based on the famous quantum secure direct communication protocol (i.e., the Bostro ¨m-Felbinger protocol) [Phys. Rev. Lett. 89 (2002) 187902] and its improvements, we propose a scheme of multiparty quantum secret sharing of classical messages (QSSCM), in which no subset of all the classical message receivers is sufficient to extract the sender's secret classical messages but all the parties cooperate together. Then we take advantage of this multiparty QSSCM scheme to establish a scheme of multiparty secret sharing of quantum information (SSQI), in which the unknown quantum state in the sender's qubit can be reconstructed in one receiver's qubit if and only if all the quantum information receivers collaborate together.