Efficient quantum memory of orbital angular momentum qubits in cold atoms

doi:10.1088/2058-9565/ac120a

NTSC-IR

	Efficient quantum memory of orbital angular momentum qubits in cold atoms
	Wang, Chengyuan 1; Yu, Ya 1; Chen, Yun 1; Cao, Mingtao 2; Wang, Jinwen 1,3; Yang, Xin 1; Qiu, Shuwei 1; Wei, Dong 1; Gao, Hong 1; Li, Fuli 1
	2021-10-01
发表期刊	QUANTUM SCIENCE AND TECHNOLOGY
ISSN	2058-9565
卷号	6 期号:4 页码:6
摘要	The spatial modes of light, carrying a quantized amount of orbital angular momentum (OAM), is one of the excellent candidates that provides access to high-dimensional quantum states, which essentially makes it promising towards building high-dimensional quantum networks. Quantum memory with efficiency above 50% is an essential condition for beating the no-cloning limit or in the one-way quantum computation. However, up till now, the highest storage efficiencies achieved for OAM states are below 30%, which is an obstacle towards practical applications. In this paper, we report the storage and retrieval of photonic qubits encoded with OAM state in an elongated cold rubidium atomic ensemble, achieving a storage efficiency around 65% with an average conditional fidelity above 98%. Our work constitutes an efficient node that is needed towards high dimensional and large scale quantum networks.\/-
关键词	quantum memory orbital angular momentums quantum information
资助者	National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC)
DOI	10.1088/2058-9565/ac120a
关键词[WOS]	STORAGE
语种	英语
资助项目	National Natural Science Foundation of China (NSFC)[11774286] ; National Natural Science Foundation of China (NSFC)[92050103] ; National Natural Science Foundation of China (NSFC)[11534008] ; National Natural Science Foundation of China (NSFC)[12033007] ; National Natural Science Foundation of China (NSFC)[61875205]
资助者	National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC)
WOS研究方向	Physics
WOS类目	Quantum Science & Technology ; Physics, Multidisciplinary
WOS记录号	WOS:000675223200001
出版者	IOP PUBLISHING LTD
引用统计	被引频次：25[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://210.72.145.45/handle/361003/10657
专题	中国科学院国家授时中心
通讯作者	Cao, Mingtao; Gao, Hong
作者单位	1.Xi An Jiao Tong Univ, Sch Phys, Shaanxi Prov Key Lab Quantum Informat & Quantum O, MOE Key Lab Nonequilibrium Synth & Modulat Conden, Xian 710049, Peoples R China 2.Chinese Acad Sci, Natl Time Serv Ctr, Key Lab Time & Frequency Primary Stand, Xian 710600, Peoples R China 3.Univ Glasgow, Sch Phys & Astron, Glasgow G12 8QQ, Lanark, Scotland
推荐引用方式 GB/T 7714	Wang, Chengyuan,Yu, Ya,Chen, Yun,et al. Efficient quantum memory of orbital angular momentum qubits in cold atoms[J]. QUANTUM SCIENCE AND TECHNOLOGY,2021,6(4):6.
APA	Wang, Chengyuan.,Yu, Ya.,Chen, Yun.,Cao, Mingtao.,Wang, Jinwen.,...&Li, Fuli.(2021).Efficient quantum memory of orbital angular momentum qubits in cold atoms.QUANTUM SCIENCE AND TECHNOLOGY,6(4),6.
MLA	Wang, Chengyuan,et al."Efficient quantum memory of orbital angular momentum qubits in cold atoms".QUANTUM SCIENCE AND TECHNOLOGY 6.4(2021):6.