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

doi:10.1126/science.aay0600

	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, Zhen 1,2; Ren, Wenhui 1,2; Hao, Jie6
刊名	SCIENCE
	2019-08-09
卷号	365 期号:6453 页码:574-577
ISSN号	0036-8075
DOI	10.1126/science.aay0600
通讯作者	Fan, Heng(hfan@iphy.ac.cn) ; Zheng, Dongning(dzheng@iphy.ac.cn) ; Wang, H.(hhwang@zju.edu.cn)
英文摘要	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.
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]
WOS关键词	QUANTUM ; ENTANGLEMENT
WOS研究方向	Science & Technology - Other Topics
语种	英语
出版者	AMER ASSOC ADVANCEMENT SCIENCE
WOS记录号	WOS:000483195200036
资助机构	National Basic Research Program of China ; National Natural Science Foundations of China ; Strategic Priority Research Program of Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://ir.ia.ac.cn/handle/173211/27247]
专题	中国科学院自动化研究所
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.