Quantum broadcast scheme and multi-output quantum teleportation via four-qubit cluster state

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• 作者：Yan Yu ; Xin Wei Zha ; Wei Li
• 关键词：Three ; party quantum broadcast scheme ; Multi ; output quantum teleportation ; Four ; qubit cluster state
• 刊名：Quantum Information Processing
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：16
• 期：2
• 全文大小：
• 刊物类别：Physics and Astronomy
• 刊物主题：Quantum Information Technology, Spintronics; Quantum Computing; Data Structures, Cryptology and Information Theory; Quantum Physics; Mathematical Physics;
• 出版者：Springer US
• ISSN：1573-1332
• 卷排序：16

文摘

In this paper, two theoretical schemes of the arbitrary single-qubit states via four-qubit cluster state are proposed. One is three-party quantum broadcast scheme, which realizes the broadcast among three participants. The other is multi-output quantum teleportation. Both allow two distant receivers to simultaneously and deterministically obtain the arbitrary single-qubit states, respectively. Compared with former schemes of an arbitrary single-qubit state, the proposed schemes realize quantum multi-cast communication efficiently, which enables Bob and Charlie to obtain the states simultaneously in the case of just knowing Alice’s measurement results. The proposed schemes play an important role in quantum information, specially in secret sharing and quantum teleportation.