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A quantum processor based on coherent transport of entangled atom arrays
The ability to engineer parallel, programmable operations between desired qubits within a quantum processor is key for building scalable quantum information systems(1,2). In most state-of-the-art approaches, qubits interact locally, constrained by the connectivity associated with their fixed spatial...
Autores principales: | , , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9021024/ https://www.ncbi.nlm.nih.gov/pubmed/35444318 http://dx.doi.org/10.1038/s41586-022-04592-6 |
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author | Bluvstein, Dolev Levine, Harry Semeghini, Giulia Wang, Tout T. Ebadi, Sepehr Kalinowski, Marcin Keesling, Alexander Maskara, Nishad Pichler, Hannes Greiner, Markus Vuletić, Vladan Lukin, Mikhail D. |
author_facet | Bluvstein, Dolev Levine, Harry Semeghini, Giulia Wang, Tout T. Ebadi, Sepehr Kalinowski, Marcin Keesling, Alexander Maskara, Nishad Pichler, Hannes Greiner, Markus Vuletić, Vladan Lukin, Mikhail D. |
author_sort | Bluvstein, Dolev |
collection | PubMed |
description | The ability to engineer parallel, programmable operations between desired qubits within a quantum processor is key for building scalable quantum information systems(1,2). In most state-of-the-art approaches, qubits interact locally, constrained by the connectivity associated with their fixed spatial layout. Here we demonstrate a quantum processor with dynamic, non-local connectivity, in which entangled qubits are coherently transported in a highly parallel manner across two spatial dimensions, between layers of single- and two-qubit operations. Our approach makes use of neutral atom arrays trapped and transported by optical tweezers; hyperfine states are used for robust quantum information storage, and excitation into Rydberg states is used for entanglement generation(3–5). We use this architecture to realize programmable generation of entangled graph states, such as cluster states and a seven-qubit Steane code state(6,7). Furthermore, we shuttle entangled ancilla arrays to realize a surface code state with thirteen data and six ancillary qubits(8) and a toric code state on a torus with sixteen data and eight ancillary qubits(9). Finally, we use this architecture to realize a hybrid analogue–digital evolution(2) and use it for measuring entanglement entropy in quantum simulations(10–12), experimentally observing non-monotonic entanglement dynamics associated with quantum many-body scars(13,14). Realizing a long-standing goal, these results provide a route towards scalable quantum processing and enable applications ranging from simulation to metrology. |
format | Online Article Text |
id | pubmed-9021024 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-90210242022-04-29 A quantum processor based on coherent transport of entangled atom arrays Bluvstein, Dolev Levine, Harry Semeghini, Giulia Wang, Tout T. Ebadi, Sepehr Kalinowski, Marcin Keesling, Alexander Maskara, Nishad Pichler, Hannes Greiner, Markus Vuletić, Vladan Lukin, Mikhail D. Nature Article The ability to engineer parallel, programmable operations between desired qubits within a quantum processor is key for building scalable quantum information systems(1,2). In most state-of-the-art approaches, qubits interact locally, constrained by the connectivity associated with their fixed spatial layout. Here we demonstrate a quantum processor with dynamic, non-local connectivity, in which entangled qubits are coherently transported in a highly parallel manner across two spatial dimensions, between layers of single- and two-qubit operations. Our approach makes use of neutral atom arrays trapped and transported by optical tweezers; hyperfine states are used for robust quantum information storage, and excitation into Rydberg states is used for entanglement generation(3–5). We use this architecture to realize programmable generation of entangled graph states, such as cluster states and a seven-qubit Steane code state(6,7). Furthermore, we shuttle entangled ancilla arrays to realize a surface code state with thirteen data and six ancillary qubits(8) and a toric code state on a torus with sixteen data and eight ancillary qubits(9). Finally, we use this architecture to realize a hybrid analogue–digital evolution(2) and use it for measuring entanglement entropy in quantum simulations(10–12), experimentally observing non-monotonic entanglement dynamics associated with quantum many-body scars(13,14). Realizing a long-standing goal, these results provide a route towards scalable quantum processing and enable applications ranging from simulation to metrology. Nature Publishing Group UK 2022-04-20 2022 /pmc/articles/PMC9021024/ /pubmed/35444318 http://dx.doi.org/10.1038/s41586-022-04592-6 Text en © The Author(s) 2022 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . |
spellingShingle | Article Bluvstein, Dolev Levine, Harry Semeghini, Giulia Wang, Tout T. Ebadi, Sepehr Kalinowski, Marcin Keesling, Alexander Maskara, Nishad Pichler, Hannes Greiner, Markus Vuletić, Vladan Lukin, Mikhail D. A quantum processor based on coherent transport of entangled atom arrays |
title | A quantum processor based on coherent transport of entangled atom arrays |
title_full | A quantum processor based on coherent transport of entangled atom arrays |
title_fullStr | A quantum processor based on coherent transport of entangled atom arrays |
title_full_unstemmed | A quantum processor based on coherent transport of entangled atom arrays |
title_short | A quantum processor based on coherent transport of entangled atom arrays |
title_sort | quantum processor based on coherent transport of entangled atom arrays |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9021024/ https://www.ncbi.nlm.nih.gov/pubmed/35444318 http://dx.doi.org/10.1038/s41586-022-04592-6 |
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