Quantum walks on a programmable two-dimensional 62-qubit superconducting processor.

Journal

Science (New York, N.Y.)
ISSN: 1095-9203
Titre abrégé: Science
Pays: United States
ID NLM: 0404511

Informations de publication

Date de publication:
28 05 2021
Historique:
received: 28 01 2021
accepted: 20 04 2021
pubmed: 8 5 2021
medline: 8 5 2021
entrez: 7 5 2021
Statut: ppublish

Résumé

Quantum walks are the quantum mechanical analog of classical random walks and an extremely powerful tool in quantum simulations, quantum search algorithms, and even for universal quantum computing. In our work, we have designed and fabricated an 8-by-8 two-dimensional square superconducting qubit array composed of 62 functional qubits. We used this device to demonstrate high-fidelity single- and two-particle quantum walks. Furthermore, with the high programmability of the quantum processor, we implemented a Mach-Zehnder interferometer where the quantum walker coherently traverses in two paths before interfering and exiting. By tuning the disorders on the evolution paths, we observed interference fringes with single and double walkers. Our work is a milestone in the field, bringing future larger-scale quantum applications closer to realization for noisy intermediate-scale quantum processors.

Identifiants

DOI: 10.1126/science.abg7812 PMID: 33958483
pubmed: 33958483
pii: science.abg7812
doi: 10.1126/science.abg7812
doi:

Types de publication

Journal Article Research Support, Non-U.S. Gov't

Langues

eng

Sous-ensembles de citation

IM

Pagination

948-952

Informations de copyright

Copyright © 2021 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works.

Auteurs

Ming Gong (M)

Hefei National Laboratory for Physical Sciences at the Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China.
Shanghai Branch, CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Shanghai 201315, China.
Shanghai Research Center for Quantum Sciences, Shanghai 201315, China.
ORCID: 0000-0002-5534-2177

Shiyu Wang (S)

Hefei National Laboratory for Physical Sciences at the Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China.
Shanghai Branch, CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Shanghai 201315, China.
Shanghai Research Center for Quantum Sciences, Shanghai 201315, China.
ORCID: 0000-0003-4616-2921

Chen Zha (C)

Hefei National Laboratory for Physical Sciences at the Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China.
Shanghai Branch, CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Shanghai 201315, China.
Shanghai Research Center for Quantum Sciences, Shanghai 201315, China.
ORCID: 0000-0003-4317-9074

Ming-Cheng Chen (MC)

Hefei National Laboratory for Physical Sciences at the Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China.
Shanghai Branch, CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Shanghai 201315, China.
Shanghai Research Center for Quantum Sciences, Shanghai 201315, China.
ORCID: 0000-0002-5158-5091

He-Liang Huang (HL)

Hefei National Laboratory for Physical Sciences at the Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China.
Shanghai Branch, CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Shanghai 201315, China.
Shanghai Research Center for Quantum Sciences, Shanghai 201315, China.
ORCID: 0000-0002-5121-3028

Yulin Wu (Y)

Hefei National Laboratory for Physical Sciences at the Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China.
Shanghai Branch, CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Shanghai 201315, China.
Shanghai Research Center for Quantum Sciences, Shanghai 201315, China.
ORCID: 0000-0001-5353-0329

Qingling Zhu (Q)

Hefei National Laboratory for Physical Sciences at the Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China.
Shanghai Branch, CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Shanghai 201315, China.
Shanghai Research Center for Quantum Sciences, Shanghai 201315, China.
ORCID: 0000-0002-0925-9903

Youwei Zhao (Y)

Hefei National Laboratory for Physical Sciences at the Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China.
Shanghai Branch, CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Shanghai 201315, China.
Shanghai Research Center for Quantum Sciences, Shanghai 201315, China.

Shaowei Li (S)

Hefei National Laboratory for Physical Sciences at the Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China.
Shanghai Branch, CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Shanghai 201315, China.
Shanghai Research Center for Quantum Sciences, Shanghai 201315, China.

Shaojun Guo (S)

Hefei National Laboratory for Physical Sciences at the Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China.
Shanghai Branch, CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Shanghai 201315, China.
Shanghai Research Center for Quantum Sciences, Shanghai 201315, China.

Haoran Qian (H)

Hefei National Laboratory for Physical Sciences at the Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China.
Shanghai Branch, CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Shanghai 201315, China.
Shanghai Research Center for Quantum Sciences, Shanghai 201315, China.

Yangsen Ye (Y)

Hefei National Laboratory for Physical Sciences at the Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China.
Shanghai Branch, CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Shanghai 201315, China.
Shanghai Research Center for Quantum Sciences, Shanghai 201315, China.
ORCID: 0000-0003-1941-9170

Fusheng Chen (F)

Hefei National Laboratory for Physical Sciences at the Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China.
Shanghai Branch, CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Shanghai 201315, China.
Shanghai Research Center for Quantum Sciences, Shanghai 201315, China.

Chong Ying (C)

Hefei National Laboratory for Physical Sciences at the Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China.
Shanghai Branch, CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Shanghai 201315, China.
Shanghai Research Center for Quantum Sciences, Shanghai 201315, China.
ORCID: 0000-0002-1769-4905

Jiale Yu (J)

Hefei National Laboratory for Physical Sciences at the Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China.
Shanghai Branch, CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Shanghai 201315, China.
Shanghai Research Center for Quantum Sciences, Shanghai 201315, China.

Daojin Fan (D)

Hefei National Laboratory for Physical Sciences at the Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China.
Shanghai Branch, CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Shanghai 201315, China.
Shanghai Research Center for Quantum Sciences, Shanghai 201315, China.
ORCID: 0000-0001-7174-2704

Dachao Wu (D)

Hefei National Laboratory for Physical Sciences at the Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China.
Shanghai Branch, CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Shanghai 201315, China.
Shanghai Research Center for Quantum Sciences, Shanghai 201315, China.

Hong Su (H)

Hefei National Laboratory for Physical Sciences at the Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China.
Shanghai Branch, CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Shanghai 201315, China.
Shanghai Research Center for Quantum Sciences, Shanghai 201315, China.

Hui Deng (H)

Hefei National Laboratory for Physical Sciences at the Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China.
Shanghai Branch, CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Shanghai 201315, China.
Shanghai Research Center for Quantum Sciences, Shanghai 201315, China.

Hao Rong (H)

Hefei National Laboratory for Physical Sciences at the Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China.
Shanghai Branch, CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Shanghai 201315, China.
Shanghai Research Center for Quantum Sciences, Shanghai 201315, China.
ORCID: 0000-0002-4201-6663

Kaili Zhang (K)

Hefei National Laboratory for Physical Sciences at the Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China.
Shanghai Branch, CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Shanghai 201315, China.
Shanghai Research Center for Quantum Sciences, Shanghai 201315, China.

Sirui Cao (S)

Hefei National Laboratory for Physical Sciences at the Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China.
Shanghai Branch, CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Shanghai 201315, China.
Shanghai Research Center for Quantum Sciences, Shanghai 201315, China.
ORCID: 0000-0003-2283-2628

Jin Lin (J)

Hefei National Laboratory for Physical Sciences at the Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China.
Shanghai Branch, CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Shanghai 201315, China.
Shanghai Research Center for Quantum Sciences, Shanghai 201315, China.

Yu Xu (Y)

Hefei National Laboratory for Physical Sciences at the Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China.
Shanghai Branch, CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Shanghai 201315, China.
Shanghai Research Center for Quantum Sciences, Shanghai 201315, China.
ORCID: 0000-0002-2672-5910

Lihua Sun (L)

Hefei National Laboratory for Physical Sciences at the Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China.
Shanghai Branch, CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Shanghai 201315, China.
Shanghai Research Center for Quantum Sciences, Shanghai 201315, China.
ORCID: 0000-0003-1527-885X

Cheng Guo (C)

Hefei National Laboratory for Physical Sciences at the Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China.
Shanghai Branch, CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Shanghai 201315, China.
Shanghai Research Center for Quantum Sciences, Shanghai 201315, China.
ORCID: 0000-0003-1185-4805

Na Li (N)

Hefei National Laboratory for Physical Sciences at the Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China.
Shanghai Branch, CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Shanghai 201315, China.
Shanghai Research Center for Quantum Sciences, Shanghai 201315, China.

Futian Liang (F)

Hefei National Laboratory for Physical Sciences at the Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China.
Shanghai Branch, CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Shanghai 201315, China.
Shanghai Research Center for Quantum Sciences, Shanghai 201315, China.
ORCID: 0000-0001-9843-0559

V M Bastidas (VM)

NTT Basic Research Laboratories and Research Center for Theoretical Quantum Physics, 3-1 Morinosato-Wakamiya, Atsugi, Kanagawa 243-0198, Japan.
ORCID: 0000-0001-8091-7860

Kae Nemoto (K)

National Institute of Informatics, 2-1-2 Hitotsubashi, Chiyoda-ku, Tokyo 101-8430, Japan.
ORCID: 0000-0003-3938-0808

W J Munro (WJ)

NTT Basic Research Laboratories and Research Center for Theoretical Quantum Physics, 3-1 Morinosato-Wakamiya, Atsugi, Kanagawa 243-0198, Japan.
National Institute of Informatics, 2-1-2 Hitotsubashi, Chiyoda-ku, Tokyo 101-8430, Japan.
ORCID: 0000-0003-1835-2250

Yong-Heng Huo (YH)

Hefei National Laboratory for Physical Sciences at the Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China.
Shanghai Branch, CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Shanghai 201315, China.
Shanghai Research Center for Quantum Sciences, Shanghai 201315, China.
ORCID: 0000-0002-0310-3078

Chao-Yang Lu (CY)

Hefei National Laboratory for Physical Sciences at the Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China.
Shanghai Branch, CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Shanghai 201315, China.
Shanghai Research Center for Quantum Sciences, Shanghai 201315, China.
ORCID: 0000-0002-8227-9177

Cheng-Zhi Peng (CZ)

Hefei National Laboratory for Physical Sciences at the Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China.
Shanghai Branch, CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Shanghai 201315, China.
Shanghai Research Center for Quantum Sciences, Shanghai 201315, China.
ORCID: 0000-0002-4753-5243

Xiaobo Zhu (X)

Hefei National Laboratory for Physical Sciences at the Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China. xbzhu16@ustc.edu.cn pan@ustc.edu.cn.
Shanghai Branch, CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Shanghai 201315, China.
Shanghai Research Center for Quantum Sciences, Shanghai 201315, China.
ORCID: 0000-0001-5974-9452

Jian-Wei Pan (JW)

Hefei National Laboratory for Physical Sciences at the Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China. xbzhu16@ustc.edu.cn pan@ustc.edu.cn.
Shanghai Branch, CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Shanghai 201315, China.
Shanghai Research Center for Quantum Sciences, Shanghai 201315, China.
ORCID: 0000-0002-6100-5142

Classifications MeSH