One-Step Generation of Multiqubit Greenberger-Horne-Zeilinger States in a Driven Circuit QED System

• 作 者: 黄劲松 聂伟 韦联福
• 机 构: QuantumOptoelectronicsLaboratory,StateKeyLaboratoryofOptoelectronicMaterialsandTechnologies
• 出 处: 理论物理通讯：英文版
• 发表日期: 2011年12期
• 关键词: 驱动电路 QED 系统 格林 单步 GHZ态 谐振器 有效率 Greenberger Horne-Zeilinger states circuit quant
• 基金项目: Supported by the National Natural Science Foundation of China under Grant Nos. 10874142 and 90921010

<正>We propose an efficient scheme to generate multiqubit Greenberger-Horne-Zeilinger(GHZ) states by onestep quantum operation in a driven circuit quantum electrodynamics(QED) system.Our proposal is based on a unitary evolution exp[—iλS_x~2],with S_x