Guozhu Sun
gzsun@nju.edu.cn
Education
2000-2005 Ph.D. in Radio Physics, Nanjing University
1996-2000 Bachelor's Degree in Radio Physics, Nanjing University
Experience
2022-Present Researcher, Hefei National Laboratory
2010-Present Professor, Nanjing University
2007-2010 Associate Professor, Nanjing University
2005-2007 Lecturer, Nanjing University
Overview of Academic Research
Prof. Guozhu Sun’s research interest is developing superconducting quantum devices.
His major achievements include:
* Established microfabrication process to fabricate high-quality superconducting quantum devices.
* Developed new structures and materials for the superconducting quantum circuits such as building compact microwave resonators with Hilbert space-filling curves and high-kinetic-inductance superconducting thin film, which reduce the resonator area sufficiently and, thus, will help to improve the integration of superconducting qubits, as well as to design other superconducting quantum devices.
*Developed home-made superconducting parametric amplifiers with excellent performances.
*Demonstrated simultaneous control of two qubits using the null-biased fiber-optic link with further reduction of the thermal load, which is a promising tool for the realization of large-scale superconducting quantum processor consisting of millions of qubits.
Research Directions/Fields:
Superconducting Parametric Amplifier and its applications
Superconducting Qudit
Microwave Photonics
Representative Publications
1.Wenqu Xu, Tingting Guo, Kaixuan Zhang, Zishuo Li, Tianshi Zhou, Quan Zuo, Yifan Sheng, Lingxiao Jing, Huashi Ma, Mingyuan Yu, Shunhong Zhou, Binglin Li, Shiyao Yang, Yongyang Yu, Junzhou Zhang, Jiyuan Zhu, Chunhai Cao, Guanghao Zhu*, Guozhu Sun*, and Peiheng Wu, “Manipulations of a transmon qubit with a null-biased electro-optic fiber link”, Nature Communications, 16, 2629(2025)
2.Tianshi Zhou, Wenqu Xu, Quan Zuo, Jiazheng Pan, Zishuo Li, Kaixuan Zhang, Tingting Guo, Yifan Sheng, Lingxiao Jing, Huashi Ma, Mingyuan Yu, Shunhong Zhou, Binglin Li, Shiyao Yang, Yongyang Yu, Jiyuan Zhu, Junzhou Zhang, Jinpeng Li, Chunhai Cao, Guozhu Sun* and Peiheng Wu, “Impedance matched Josephson parametric amplifier with a multisection /4 transmission line transformer”, Appl. Phys. Lett. 126, 104002 (2025)
3.Zishuo Li, Tingting Guo, Kaixuan Zhang, Wenqu Xu, Quan Zuo, Jinpeng Li, Jiazheng Pan, Hancong Sun, Chunhai Cao, Guozhu Sun*, and Peiheng Wu, “Photon number splitting in a multi-level transmon with different microwave photon sources”, Phys. Rev. B. 111, 054525(2025)