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

• 作者: 聂伟 韦联福 黄劲松
• 来源期刊: 理论物理通讯：英文版
• 学科: 工学
• 关键词: 驱动电路 QED 系统 格林 单步 GHZ态 谐振器 有效率
• 年，卷（期）: 2011,（12）
• 页码范围: 1005-1008
• 页数: 4页
• 分类号: O413.2|TN322.8
• 语种: 英文

摘要

We propose an efficient scheme to generate multiqubit Greenberger-ttorne--Zeilinger （GHZ） states by one- step quantum operation in a driven circuit quantum electrodyna.mics （QED） system. Our proposal is based on a unitary evolution exp[-iλSx^2], with Sx being the collective spin operator in x direction and A a controllable parameter, induced by driving the resonator. The quantum operation avoids resonator-field decay and may achieve the GHZ states with ideal success probability. The feasibility with the experimentally-demonstrated circuit QED system is also discussed.

作者信息

序号	姓名	单位	发文数	被引次数	H指数	G指数
1	韦联福		11	26	3.0	4.0
2	聂伟		2	3	1.0	1.0
3	黄劲松		1	0	0.0	0.0