Three-Party Quantum State Sharing of an Arbitrary Unknown Two-Qubit State Based on Entanglement Swap

• 作 者: YUAN Hao SONG Jun HOU Kui HU X
• 机 构: DepartmentofMathematics＆Physics,SchoolofPhysics＆MaterialScience,Teaching＆ResearchSectionofPhysics
• 出 处: 理论物理通讯：英文版
• 发表日期: 2009年7期
• 关键词: 量子位 纠缠交换 共享 贝尔 测量基 量子态 量子比特 量子通道 quantum state sharing entanglement swapping B
• 基金项目: Supported by the Natural Science Research Programme of the Education Department of Anhui Province under Grant Nos. KJ2009B039Z and KJ2009B018Z, and the Municipal Level Research Project from Lu＇an City

<正> We propose a scheme for sharing an arbitrary unknown two-qubit state among three parties by using afour-qubit cluster-class state and a Bell state as a quantum channel With a quantum controlled phase gate (QCPG)operation and a local unitary oper