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Probing many-body dynamics on a 51-atom quantum simulator

Bernien, Hannes and Schwartz, Sylvain and Keesling, Alexander and Levine, Harry and Omran, Ahmed and Pichler, Hannes and Choi, Soonwon and Zibrov, Alexander S. and Endres, Manuel and Greiner, Markus and Vuletić, Vladan and Lukin, Mikhail D. (2017) Probing many-body dynamics on a 51-atom quantum simulator. Nature, 551 (7682). pp. 579-584. ISSN 0028-0836.

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[img] Image (JPEG) (Extended Data Figure 1 : Experimental sequence and Rydberg laser set-up) - Supplemental Material
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[img] Image (JPEG) (Extended Data Figure 2 : Drop-recapture curve) - Supplemental Material
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[img] Image (JPEG) (Extended Data Figure 3 : Typical Rabi oscillation, homogeneity and coherence for non-interacting atoms) - Supplemental Material
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[img] Image (JPEG) (Extended Data Figure 4 : Spectroscopic measurement of Rydberg interactions) - Supplemental Material
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[img] Image (JPEG) (Extended Data Figure 5 : Ground-state preparation probability) - Supplemental Material
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[img] Image (JPEG) (Extended Data Figure 6 : State preparation with 51-atom clusters) - Supplemental Material
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[img] Image (JPEG) (Extended Data Figure 7 : State reconstruction) - Supplemental Material
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[img] Image (JPEG) (Extended Data Figure 8 : Comparison to a thermal state) - Supplemental Material
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[img] Image (JPEG) (Extended Data Figure 9 : Oscillations in domain-wall density using a variational matrix product state ansatz) - Supplemental Material
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[img] Image (JPEG) (Extended Data Figure 10 : Decay of oscillations after a quench and entropy growth) - Supplemental Material
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Controllable, coherent many-body systems can provide insights into the fundamental properties of quantum matter, enable the realization of new quantum phases and could ultimately lead to computational systems that outperform existing computers based on classical approaches. Here we demonstrate a method for creating controlled many-body quantum matter that combines deterministically prepared, reconfigurable arrays of individually trapped cold atoms with strong, coherent interactions enabled by excitation to Rydberg states. We realize a programmable Ising-type quantum spin model with tunable interactions and system sizes of up to 51 qubits. Within this model, we observe phase transitions into spatially ordered states that break various discrete symmetries, verify the high-fidelity preparation of these states and investigate the dynamics across the phase transition in large arrays of atoms. In particular, we observe robust many-body dynamics corresponding to persistent oscillations of the order after a rapid quantum quench that results from a sudden transition across the phase boundary. Our method provides a way of exploring many-body phenomena on a programmable quantum simulator and could enable realizations of new quantum algorithms.

Item Type:Article
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URLURL TypeDescription ReadCube access Paper
Keesling, Alexander0000-0003-3931-0949
Omran, Ahmed0000-0002-2253-0278
Zibrov, Alexander S.0000-0002-3200-4351
Endres, Manuel0000-0002-4461-224X
Greiner, Markus0000-0002-2935-2363
Lukin, Mikhail D.0000-0002-8658-1007
Additional Information:© 2017 Macmillan Publishers Limited, part of Springer Nature. Received: 13 July 2017; Accepted: 06 October 2017; Published online: 29 November 2017. Data availability: The data that support the findings of this study are available from the corresponding authors on reasonable request. We thank E. Demler, A. Chandran, S. Sachdev, A. Vishwanath, P. Zoller, P. Silvi, T. Pohl, M. Knap, M. Fleischhauer, S. Hofferberth and A. Harrow for discussions. This work was supported by NSF, CUA, ARO, and a Vannevar Bush Faculty Fellowship. H.B. acknowledges support by a Rubicon Grant of the Netherlands Organization for Scientific Research (NWO). A.O. acknowledges support by a research fellowship from the German Research Foundation (DFG). S.S. acknowledges funding from the European Union under the Marie Skłodowska Curie Individual Fellowship Programme H2020-MSCA-IF-2014 (project number 658253). H.P. acknowledges support by the National Science Foundation (NSF) through a grant at the Institute for Theoretical Atomic Molecular and Optical Physics (ITAMP) at Harvard University and the Smithsonian Astrophysical Observatory. H.L. acknowledges support by the National Defense Science and Engineering Graduate (NDSEG) Fellowship. Contributions: The experiments and data analysis were carried out by H.B., S.S., A.K., H.L., A.O., A.S.Z. and M.E. Theoretical analysis was performed by H.P. and S.C. All work was supervised by M.G., V.V. and M.D.L. All authors discussed the results and contributed to the manuscript. Competing interests: The authors declare no competing financial interests.
Funding AgencyGrant Number
Harvard-MIT Center for Ultracold AtomsUNSPECIFIED
Army Research Office (ARO)UNSPECIFIED
Vannever Bush Faculty FellowshipUNSPECIFIED
Nederlandse Organisatie voor Wetenschappelijk Onderzoek (NWO)UNSPECIFIED
Deutsche Forschungsgemeinschaft (DFG)UNSPECIFIED
Marie Curie FellowshipH2020-MSCA-IF-2014-658253
National Defense Science and Engineering Graduate (NDSEG) FellowshipUNSPECIFIED
Issue or Number:7682
Record Number:CaltechAUTHORS:20170921-114357507
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:81687
Deposited By: George Porter
Deposited On:25 Sep 2017 23:11
Last Modified:09 Mar 2020 13:19

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