Omran, A., Levine, H., Keesling, A., Semeghini, G., Wang, T. T., Ebadi, S., Bernien, H., Zibrov, A. S., Pichler, H., Choi, S., Cui, J., Rossignolo, M., Rembold, P., Montangero, S., Calarco, T., Endres, M., Greiner, M., Vuletic, V. and Lukin, M. D. (2019). Generation and manipulation of Schrodinger cat states in Rydberg atom arrays. Science, 365 (6453). S. 570 - 575. WASHINGTON: AMER ASSOC ADVANCEMENT SCIENCE. ISSN 1095-9203

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Abstract

Quantum entanglement involving coherent superpositions of macroscopically distinct states is among the most striking features of quantum theory, but its realization is challenging because such states are extremely fragile. Using a programmable quantum simulator based on neutral atom arrays with interactions mediated by Rydberg states, we demonstrate the creation of Schrodinger cat states of the Greenberger-Horne-Zeilinger (GHZ) type with up to 20 qubits. Our approach is based on engineering the energy spectrum and using optimal control of the many-body system. We further demonstrate entanglement manipulation by using GHZ states to distribute entanglement to distant sites in the array, establishing important ingredients for quantum information processing and quantum metrology.

Item Type: Journal Article
Creators:
CreatorsEmailORCIDORCID Put Code
Omran, A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Levine, H.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Keesling, A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Semeghini, G.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Wang, T. T.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Ebadi, S.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Bernien, H.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Zibrov, A. S.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Pichler, H.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Choi, S.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Cui, J.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Rossignolo, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Rembold, P.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Montangero, S.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Calarco, T.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Endres, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Greiner, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Vuletic, V.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Lukin, M. D.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
URN: urn:nbn:de:hbz:38-144501
DOI: 10.1126/science.aax9743
Journal or Publication Title: Science
Volume: 365
Number: 6453
Page Range: S. 570 - 575
Date: 2019
Publisher: AMER ASSOC ADVANCEMENT SCIENCE
Place of Publication: WASHINGTON
ISSN: 1095-9203
Language: English
Faculty: Unspecified
Divisions: Unspecified
Subjects: no entry
Uncontrolled Keywords:
KeywordsLanguage
ENTANGLEMENTMultiple languages
Multidisciplinary SciencesMultiple languages
Refereed: Yes
URI: http://kups.ub.uni-koeln.de/id/eprint/14450

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