Future Physicist International Summer Camp 2023

Speaker & Supervisor

Prof. WANG Hui

Title:     Quantum computational advantage and beyond

Abstract:

Quantum computational advantage is a milestone in quantum computing field, which states that a specific problem can be efficiently solved by a quantum machine while it’s intractable for all classical computers. In this talk, I will show how we realized this objective, by a step-by-step manner. In 2020, we built “Jiuzhang” quantum computer which shows a quantum computational advantage of 1014. After that, we focused on applications on “Jiuzhang”, and explore quantum nonlinear optics to implement room-temperature quantum computing based on photons.

Curriculum Vitae：

Education: 

Ph.D. in Physics  University of Science and Technology of China, China      10/2020

Employment:

University of Science and Technology of China    Associate research fellow of Physics       11/ 2020  Current

Research interests:

•Quantum Physics and quantum optics

Single-photon sources

Quantum computational advantage and NISQ applications

•Quantum nonlinear optics: towards room-temperature quantum computing

Quantum nonlinear optics is a new regime where the single photon response is nonlinear. This nonlinearity is necessary to realize room-temperature quantum computing using photons. In this case, we can throw away expensive refrigerator and sophisticated laser cooling, just a single chip with many qubits to run our task at room temperature under atmosphere envirment.

Publications:

•    Hui Wang, Z.-H. Duan, Y.-H. Li, S. Chen, J.-P Li, Y.-M. He, M.-C. Chen, Y. He, X. Ding, C.-Z. Peng, Christian Schneider, Martin Kamp, Sven Hofling, Chao-Yang Lu and Jian-Wei Pan，Near-transform-limited single photons from an efficient solid-state quantum emitter. Phys. Rev. Lett. 116, 213601 (2016).

•    Hui Wang, Yu He, Yu -Huai Li, Zu-En Su, Bo Li, He-Liang Huang, Xing Ding, Ming-Cheng Chen, Chang Liu, Jian Qin, Jin-Peng Li, Yu-Ming He, Christian Schneider, Martin Kamp, cheng-zhi Pen, Sven Hofling, Chao-Yang Lu and Jian-Wei Pan，High-efficiency multiphoton boson sampling. Nature Photonics 11, 361-365 (2017).

•    Hui Wang, Wei Li, Xiao Jiang, Y.-M. He, Y.-H. Li, X. Ding, M.-C. Chen, J. Qin, C.-Z. Peng, C. Schneider, M. Kamp, W.-J. Zhang, H. Li, L.-X. You, Z. Wang, J. P. Dowling, S. Höfling, Chao-Yang Lu, and Jian-Wei Pan, Toward scalable boson sampling with photon loss. Phys. Rev. Lett. 120, 230503 (2018).

•    Hui Wang, Yu-Ming He, T.-H. Chung, Hai Hu, Ying Yu, Si Chen, Xing Ding, M.-C. Chen, Jian Qin, Xiaoxia Yang, Run-Ze Liu, Z.-C. Duan, J.-P. Li, S. Gerhardt, K. Winkler, J. Jurkat, Lin-Jun Wang, Niels Gregersen, Yong-Heng Huo, Qing Dai, Siyuan Yu, Sven Höfling, Chao-Yang Lu & Jian-Wei Pan. Towards optimal single-photon sources from polarized microcavities. Nature Photonics 13, 770-775 (2019). Selected as the cover story of Nature Photonics.

•    Yu-Ming He*, Hui Wang* (equally contributing first author), Can Wang*, M.-C. Chen, Xing Ding, Jian Qin, Z.-C. Duan, Si Chen, J.-P. Li, Run-Ze Liu, C. Schneider, Mete Atatüre, Sven Höfling, Chao-Yang Lu & Jian-Wei Pan. Coherently driving a single quantum two-level system with dichromatic laser pulses. Nature Physics 15, 941-945 (2019).

•    Hui Wang, Hai Hu, T.-H. Chung, Jian Qin, Xiaoxia Yang, J.-P. Li, R.-Z. Liu, H.-S. Zhong, Y.-M. He, Xing Ding, Y.-H. Deng, Qing Dai, Y.-H. Huo, Sven Höfling, Chao-Yang Lu, and Jian-Wei Pan. On-demand Semiconductor Source of Entangled Photons Which Simultaneously Has High Fidelity, Efficiency, and Indistinguishability. Phys. Rev. Lett. 122, 113602 (2019).

•    Hui Wang, J. Qin, X. Ding, M.-C. Chen, S. Chen, X. You, Y.-M. He, X. Jiang, L. You, Z. Wang, C. Schneider, Jelmer J. Renema, Sven Höfling, Chao-Yang Lu, and Jian-Wei Pan. Boson sampling with 20 input photons and a 60-mode interferometer in a 1014-dimensional Hilbert space. Phys. Rev. Lett. 123, 250503 (2019).

•    Han­Sen Zhong, Hui Wang (equally contributing first author), Yu­Hao Deng, Ming­Cheng Chen, Li­Chao Peng, Yi­Han Luo, Jian Qin, Dian Wu, Xing Ding, Yi Hu, Peng Hu, Xiao­Yan Yang, Wei­Jun Zhang, HaoLi, Yuxuan Li, Xiao Jiang, Lin Gan, Guangwen Yang, Lixing You, Zhen Wang, Li Li, Nai­Le Liu, Chao­Yang Lu, Jian­Wei Pan. Quantum computational advantage using photons. Science 370, 1460 (2020)

•    Hui Wang, Jian Qin, Si Chen, Ming-Cheng Chen, Xiang You, Xing Ding, Y.-H. Huo, Ying Yu, C. Schneider, Sven Höfling, Marlan Scully, Chao-Yang Lu, and Jian-Wei Pan. Observation of Intensity Squeezing in Resonance Fluorescence from a Solid-State Device. Phys. Rev. Lett. 125, 153601 (2020).