ITP OpenIR  > SCI期刊论文
Xu, Peng; Yi, Su1,2,3; Zhang, Wenxian
Efficient Generation of Many-Body Entangled States by Multilevel Oscillations
Source PublicationPHYSICAL REVIEW LETTERS
Language英语
KeywordBOSE SPIN-1 NOISE
AbstractWe generate high-fidelity massively entangled states in an antiferromagnetic spin-1 Bose-Einstein condensate (BEC) by utilizing multilevel oscillations. Combining the multilevel oscillations with additional adiabatic drives, we greatly shorten the necessary evolution time and relax the requirement on the control accuracy of quadratic Zeeman splitting, from microgauss to milligauss, for a Na-23 spinor BEC. The achieved high fidelities over 96% show that two kinds of massively entangled states, the many-body singlet state and the twin-Fock state, are almost perfectly generated. The generalized spin squeezing parameter drops to a value far below the standard quantum limit even with the presence of atom number fluctuations and stray magnetic fields, illustrating the robustness of our protocol under real experimental conditions. The generated many-body entangled states can be employed to achieve the Heisenberg-limit quantum precision measurement and to attack nonclassical problems in quantum information science.
2019
ISSN0031-9007
Volume123Issue:7Pages:73001
Cooperation Status国内
Subject AreaPhysics
MOST Discipline CataloguePhysics, Multidisciplinary
DOI10.1103/PhysRevLett.123.073001
Indexed BySCIE
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Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/26967
CollectionSCI期刊论文
Affiliation1.Wuhan Univ, Sch Phys & Technol, Wuhan 430072, Hubei, Peoples R China
2.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, POB 2735, Beijing 100190, Peoples R China
3.Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100049, Peoples R China
4.Univ Chinese Acad Sci, CAS Ctr Excellence Topol Quantum Computat, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Xu, Peng,Yi, Su,Zhang, Wenxian. Efficient Generation of Many-Body Entangled States by Multilevel Oscillations[J]. PHYSICAL REVIEW LETTERS,2019,123(7):73001.
APA Xu, Peng,Yi, Su,&Zhang, Wenxian.(2019).Efficient Generation of Many-Body Entangled States by Multilevel Oscillations.PHYSICAL REVIEW LETTERS,123(7),73001.
MLA Xu, Peng,et al."Efficient Generation of Many-Body Entangled States by Multilevel Oscillations".PHYSICAL REVIEW LETTERS 123.7(2019):73001.
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