Solid-state optimal phase-covariant quantum cloning machine

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	Solid-state optimal phase-covariant quantum cloning machine
	Pan, XY ; Liu, GQ ; Yang, LL ; Fan, H
刊名	APPLIED PHYSICS LETTERS
	2011
卷号	99 期号:5
关键词	DIAMOND SPIN ENTANGLEMENT
ISSN号	0003-6951
通讯作者	Pan, XY (reprint author), Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China.
中文摘要	Here, we report an experimental realization of optimal phase-covariant quantum cloning machine with a single electron spin in solid state system at room temperature. The involved three states of two logic qubits are encoded physically in three levels of a single electron spin with two Zeeman sub-levels at a nitrogen-vacancy defect center in diamond. The preparation of input state and the phase-covariant quantum cloning transformation is controlled by two independent microwave fields. The average experimental fidelity reaches 85.2% which is very close to theoretical optimal fidelity 85.4% and is beyond the bound 83.3% of universal cloning. (C) 2011 American Institute of Physics. [doi:10.1063/1.3624595]
收录类别	SCI
资助信息	NSFC [10974247, 10974251]; "973" programs [2009CB929103, 2010CB922904]
语种	英语
公开日期	2013-09-24
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/52752]
专题	物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文
推荐引用方式 GB/T 7714	Pan, XY,Liu, GQ,Yang, LL,et al. Solid-state optimal phase-covariant quantum cloning machine[J]. APPLIED PHYSICS LETTERS,2011,99(5).
APA	Pan, XY,Liu, GQ,Yang, LL,&Fan, H.(2011).Solid-state optimal phase-covariant quantum cloning machine.APPLIED PHYSICS LETTERS,99(5).
MLA	Pan, XY,et al."Solid-state optimal phase-covariant quantum cloning machine".APPLIED PHYSICS LETTERS 99.5(2011).