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Quantum walks on a programmable two-dimensional 62-qubit superconducting processor.
Gong, Ming; Wang, Shiyu; Zha, Chen; Chen, Ming-Cheng; Huang, He-Liang; Wu, Yulin; Zhu, Qingling; Zhao, Youwei; Li, Shaowei; Guo, Shaojun; Qian, Haoran; Ye, Yangsen; Chen, Fusheng; Ying, Chong; Yu, Jiale; Fan, Daojin; Wu, Dachao; Su, Hong; Deng, Hui; Rong, Hao; Zhang, Kaili; Cao, Sirui; Lin, Jin; Xu, Yu; Sun, Lihua; Guo, Cheng; Li, Na; Liang, Futian; Bastidas, V M; Nemoto, Kae; Munro, W J; Huo, Yong-Heng; Lu, Chao-Yang; Peng, Cheng-Zhi; Zhu, Xiaobo; Pan, Jian-Wei.
Afiliação
  • 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.
  • Wang S; Shanghai Branch, CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Shanghai 201315, China.
  • Zha C; Shanghai Research Center for Quantum Sciences, Shanghai 201315, China.
  • 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.
  • Huang HL; Shanghai Branch, CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Shanghai 201315, China.
  • Wu Y; Shanghai Research Center for Quantum Sciences, Shanghai 201315, China.
  • 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.
  • Zhao Y; Shanghai Branch, CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Shanghai 201315, China.
  • Li S; Shanghai Research Center for Quantum Sciences, Shanghai 201315, China.
  • 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.
  • Qian H; Shanghai Branch, CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Shanghai 201315, China.
  • Ye Y; Shanghai Research Center for Quantum Sciences, Shanghai 201315, China.
  • 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.
  • Ying C; Shanghai Branch, CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Shanghai 201315, China.
  • Yu J; Shanghai Research Center for Quantum Sciences, Shanghai 201315, China.
  • 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.
  • Wu D; Shanghai Branch, CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Shanghai 201315, China.
  • Su H; Shanghai Research Center for Quantum Sciences, Shanghai 201315, China.
  • 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.
  • Rong H; Shanghai Branch, CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Shanghai 201315, China.
  • Zhang K; Shanghai Research Center for Quantum Sciences, Shanghai 201315, China.
  • 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.
  • Lin J; Shanghai Branch, CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Shanghai 201315, China.
  • Xu Y; Shanghai Research Center for Quantum Sciences, Shanghai 201315, China.
  • 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.
  • Guo C; Shanghai Branch, CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Shanghai 201315, China.
  • Li N; Shanghai Research Center for Quantum Sciences, Shanghai 201315, China.
  • 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.
  • Bastidas VM; Shanghai Branch, CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Shanghai 201315, China.
  • Nemoto K; Shanghai Research Center for Quantum Sciences, Shanghai 201315, China.
  • Munro WJ; Hefei National Laboratory for Physical Sciences at the Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China.
  • Huo YH; Shanghai Branch, CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Shanghai 201315, China.
  • Lu CY; Shanghai Research Center for Quantum Sciences, Shanghai 201315, China.
  • 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.
  • Zhu X; Shanghai Branch, CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Shanghai 201315, China.
  • Pan JW; Shanghai Research Center for Quantum Sciences, Shanghai 201315, China.
Science ; 372(6545): 948-952, 2021 05 28.
Article em En | MEDLINE | ID: mdl-33958483
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.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Science Ano de publicação: 2021 Tipo de documento: Article
Texto completo
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Science Ano de publicação: 2021 Tipo de documento: Article