Scalable generation of genuine multiparticle entanglement with superconducting qubits

ORAL

Abstract

Solid state qubits by their nature are a scalable technology, but the number of entangled qubits still trails the size of state-of-the-art systems considerably. Producing large entangled states requires many different measures of processor quality to be high simultaneously: coherence times and tunability must be high; crosstalk and state leakage must be minimized. In addition, gate operations need to be specifically calibrated to create entanglement. In this work, based only on single-qubit gates and controlled-phase gates, we generated and verified the genuine multiparticle entanglement for more than 10 superconducting qubits. This gate-based approach to entanglement generation is directly scalable to larger systems. Our result is an important step towards achieving near-term quantum supremacy.

*This research was supported by the National Basic Research Program (973) of China under Grant No.~2017YFA0304300, the Chinese Academy of Science, Alibaba Cloud and Science and Technology Committee of Shanghai Municipality. Xiaobo Zhu is supported by NSFC under Grants No. 11574380. Haohua Wang is supported by NSFC under Grants No.11434008.

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Presenters

  • Ming Gong

    • Hefei National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei

Authors

  • Ming Gong

    • Hefei National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei

  • Ming-Cheng Chen

    • Hefei National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei

  • Yarui Zheng

    • Hefei National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei

  • Shiyu Wang

    • Hefei National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei

  • Chen Zha

    • Hefei National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei

  • Hui Deng

    • Hefei National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei

  • Zhiguang Yan

    • Hefei National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei

  • Hao Rong

    • Hefei National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei

  • Yulin Wu

    • Hefei National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei

  • Shaowei Li

    • Hefei National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei

  • Fusheng Chen

    • Hefei National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei

  • Youwei Zhao

    • Hefei National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei

  • Futian Liang

    • Hefei National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei

  • Jin Lin

    • Hefei National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei

  • Yu Xu

    • Hefei National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei

  • Cheng Guo

    • Hefei National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei

  • Lihua Sun

    • Hefei National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei

  • Anthony D Castellano

    • Hefei National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei

  • Haohua Wang

    • Department of Physics, Zhejiang University

  • Chengzhi Peng

    • Hefei National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei

  • Chao-Yang Lu

    • Hefei National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China
    • Hefei National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei

  • Xiaobo Zhu

    • Hefei National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei

  • Jian-Wei Pan

    • Hefei National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China
    • Hefei National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei
    • Department of Modern Physics, University of Science and Technology of China