许凯

简介


许凯,男,1990年生,湖南岳阳人。2012年6月本科毕业于中南大学;2018年6月在浙江大学获得博士学位;2018年7月加入中科院物理所固态量子信息与计算实验室Q03组,任副研究员;2021年入选中国科学院青年创新促进会。现为博士生导师。


主要研究方向


超导量子计算,量子模拟

过去的主要工作及获得的成果


2017年成功制备并利用大规模量子层析技术完整标定了10比特的GHZ态,保真度达到66.8%;2018年实现了多体局域效应在超导计算平台上的量子模拟;2019年实现了20个超导量子比特的多组分薛定谔猫态的实验制备。

代表性论文及专利


(*: 通讯作者, #: 同等贡献)



13.     Zhen-Biao Yang, Pei-Rong Han, Xin-Jie Huang, Wen Ning, Hekang Li, Kai Xu*, Dongning Zheng, Heng Fan* & Shi-Biao Zheng*, Experimental demonstration of entanglement-enabled universal quantum cloning in a circuit, npj Quantum Information 7: 44 (2021).

12.     Kai Xu#, Zheng-Hang Sun#, Wuxin Liu#, Yu-Ran Zhang, Hekang Li, Hang Dong, Wenhui Ren, Pengfei Zhang, Franco Nori, Dongning Zheng*, Heng Fan*, H. Wang*, Probing dynamical phase transitions with a superconducting quantum simulator, Science Advances 6, eaba4935 (2020).

11.     C. Song#, Kai Xu#, H. K. Li#, Y.-R. Zhang, X. Zhang, W. X. Liu, Q. J. Guo, Z. Wang, W. H. Ren, J. Hao, H. Feng, H. Fan*, D. N. Zheng*, D.-W. Wang, H. Wang*, S.-Y. Zhu, Generation of multicomponent atomic Schrödinger cat states of up to 20 qubits, Science 365, 574 (2019). (SCI高引)

10.     W. Ning, X.-J. Huang, P.-R. Han, H. K. Li, H. Deng, Z.-B. Yang*, Z-R. Zhong, Y. Xia, Kai Xu*, D. N. Zheng, and S.-B. Zheng*, Deterministic Entanglement Swapping in a Superconducting Circuit, Physical Review Letters 123, 060502 (2019).

9.     Kai Xu#, J. J. Chen#, Y. Zeng, Y. R. Zhang, C. Song, W. X. Liu, Q. J. Guo, P. F. Zhang, D. Xu, H. Deng, K. Q. Huang, H. Wang*, X. B. Zhu*, D. N. Zheng, H. Fan*, Emulating Many-Body Localization with a Superconducting Quantum Processor, Physical Review Letters 120, 050507 (2018). (SCI高引)

8.     C. Song#, Kai Xu#, W. X. Liu, C. P. Yang, S. B. Zheng*, H. Deng, Q. W. Xie, K. Q. Huang, Q. J. Guo, L. B. Zhang, P. F. Zhang, D. Xu, D. N. Zheng, X. B. Zhu*, H. Wang*, Y. A. Chen, C. Y. Lu, S. Y. Han, J. W. Pan, 10-Qubit Entanglement and Parallel Logic Operations with a Superconducting Circuit, Physical Review Letters 119, 180511 (2017). (SCI高引,编辑推荐)

7.     D. V. Averin*, Kai Xu, Y. P. Zhong, C. Song, H. Wang*, S. Y. Han*, Suppression of Dephasing by Qubit Motion in Superconducting Circuits, Physical Review Letters 116, 010501 (2016).

6.     S. B. Zheng*, Y. P. Zhong, Kai Xu, Q. J. Wang, H. Wang, L. T. Shen, C. P. Yang, J. M. Martinis*, A. N. Cleland*, S. Y. Han, Emulating Quantum Delayed-Choice Experiment with a Beam Splitter in a Quantum Superposition, Physical Review Letters 115, 260403 (2015).

5.     C. Song, S. B. Zheng*, P. F. Zhang, Kai Xu, L. B. Zhang, Q. J. Guo, W. X. Liu, D. Xu, H. Deng, K. Q. Huang, D. N. Zheng, X. B. Zhu*, H. Wang*, Continuous-variable geometric phase and its manipulation for quantum computation in a superconducting circuit, Nature Communications 8, 1061 (2017).

4.     Y. P. Zhong, D. Xu, P. Wang, C. Song, Q. J. Guo, W. X. Liu, Kai Xu, B. X. Xia, C. Y. Lu*, S. Y. Han, J. W. Pan*, H. Wang*, Emulating Anyonic Fractional Statistical Behavior in a Superconducting Quantum Circuit, Physical Review Letters 117, 110501 (2016).

3.     C. Song, D. Xu, P. F. Zhang, J. W. Wang, Q. J. Guo, W. X. Liu, Kai Xu, H. Deng, K. Q. Huang, D. N. Zheng, S.-B. Zheng, H. Wang*, X. B. Zhu*, C.-Y. Lu*, and J.-W. Pan. Demonstration of Topological Robustness of Anyonic Braiding Statistics with a Superconducting Quantum Circuit, Physical Review Letters 121, 030502 (2018).

2.   T. X. Yan#, B.-J. Liu#, Kai Xu, C. Song, S. Liu, Z. S. Zhang, H. Deng, Z. G. Yan, H. Rong, K. Q. Huang, M.-H. Yung*, Y. Z. Chen*, and D. P. Yu, Experimental Realization of Nonadiabatic Shortcut to Non-Abelian Geometric Gates, Physical Review Letters 122, 080501 (2019).

1.   Kai Xu#, X. Y. LinPeng#, Z. L. Wang*. Decoherence suppression combining quantum uncollapsing and dynamical decoupling. Applied Physics Letters 104, 263509 (2014).


目前的研究课题及展望


目前负责国家自然科学基金委青年基金项目,基金委重大研究计划培育项目,北京市基金委重点专项(课题负责人),同时作为骨干人员参与基金委重点项目以及中科院先导项目。我们团队目前在C楼实验室拥有两台大型稀释制冷机,能完成多超导量子比特的量子模拟和量子算法演示实验。


培养研究生情况


每年拟和范桁老师合作培养研究生1-2名,欢迎对超导量子计算感兴趣的同学加入。

电话:

010-82649634

010-82649634

Email

kaixu@iphy.ac.cn