Generation of multicomponent atomic Schrodinger cat states of up to 20 qubits

doi:10.1126/science.aay0600

CASIA OpenIR > 国家专用集成电路设计工程技术研究中心 > 实感计算

	Generation of multicomponent atomic Schrodinger cat states of up to 20 qubits
	Song, Chao 1,2; Xu, Kai 3; Li, Hekang 3; Zhang, Yu-Ran 3,5; Zhang, Xu 1,2; Liu, Wuxin 1,2; Guo, Qiujiang 1,2; Wang, Zhen1,2 ; Ren, Wenhui 1,2; Hao, Jie6 ; Feng, Hui6 ; Fan, Heng 3,4; Zheng, Dongning 3,4; Wang, Da-Wei 1,2,4; Wang, H.1,2,7; Zhu, Shi-Yao 1,2,7
发表期刊	SCIENCE
ISSN	0036-8075
	2019-08-09
卷号	365 期号:6453 页码:574-577
通讯作者	Fan, Heng(hfan@iphy.ac.cn) ; Zheng, Dongning(dzheng@iphy.ac.cn) ; Wang, H.(hhwang@zju.edu.cn)
摘要	Multipartite entangled states are crucial for numerous applications in quantum information science. However, the generation and verification of multipartite entanglement on fully controllable and scalable quantum platforms remains an outstanding challenge. We report the deterministic generation of an 18-qubit Greenberger-Horne-Zeilinger (GHZ) state and multicomponent atomic Schrodinger cat states of up to 20 qubits on a quantum processor, which features 20 superconducting qubits, also referred to as artificial atoms, interconnected by a bus resonator. By engineering a one-axis twisting Hamiltonian, the system of qubits, once initialized, coherently evolves to multicomponent atomic Schrodinger cat states-that is, superpositions of atomic coherent states including the GHZ state-at specific time intervals as expected. Our approach on a solid-state platform should not only stimulate interest in exploring the fundamental physics of quantum many-body systems, but also enable the development of applications in practical quantum metrology and quantum information processing.
DOI	10.1126/science.aay0600
关键词[WOS]	QUANTUM ; ENTANGLEMENT
收录类别	SCI
语种	英语
资助项目	National Basic Research Program of China[2017YFA0304300] ; National Basic Research Program of China[2016YFA0300600] ; National Natural Science Foundations of China[11725419] ; National Natural Science Foundations of China[11434008] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDB28000000] ; National Basic Research Program of China[2017YFA0304300] ; National Basic Research Program of China[2016YFA0300600] ; National Natural Science Foundations of China[11725419] ; National Natural Science Foundations of China[11434008] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDB28000000]
项目资助者	National Basic Research Program of China ; National Natural Science Foundations of China ; Strategic Priority Research Program of Chinese Academy of Sciences
WOS研究方向	Science & Technology - Other Topics
WOS类目	Multidisciplinary Sciences
WOS记录号	WOS:000483195200036
出版者	AMER ASSOC ADVANCEMENT SCIENCE
引用统计	被引频次：226[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ia.ac.cn/handle/173211/27248
专题	国家专用集成电路设计工程技术研究中心_实感计算
通讯作者	Fan, Heng; Zheng, Dongning; Wang, H.
作者单位	1.Zhejiang Univ, Interdisciplinary Ctr Quantum Informat, State Key Lab Modern Opt Instrumentat, Hangzhou 310027, Zhejiang, Peoples R China 2.Zhejiang Univ, Zhejiang Prov Key Lab Quantum Technol & Device, Dept Phys, Hangzhou 310027, Zhejiang, Peoples R China 3.Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China 4.Univ Chinese Acad Sci, CAS Ctr Excellence Topol Quantum Computat, Beijing 100190, Peoples R China 5.Beijing Computat Sci Res Ctr, Beijing 100094, Peoples R China 6.Chinese Acad Sci, Inst Automat, Beijing 100190, Peoples R China 7.Univ Sci & Technol China, Synerget Innovat Ctr Quantum Informat & Quantum P, Hefei 230026, Anhui, Peoples R China
推荐引用方式 GB/T 7714	Song, Chao,Xu, Kai,Li, Hekang,et al. Generation of multicomponent atomic Schrodinger cat states of up to 20 qubits[J]. SCIENCE,2019,365(6453):574-577.
APA	Song, Chao.,Xu, Kai.,Li, Hekang.,Zhang, Yu-Ran.,Zhang, Xu.,...&Zhu, Shi-Yao.(2019).Generation of multicomponent atomic Schrodinger cat states of up to 20 qubits.SCIENCE,365(6453),574-577.
MLA	Song, Chao,et al."Generation of multicomponent atomic Schrodinger cat states of up to 20 qubits".SCIENCE 365.6453(2019):574-577.