Research Interest

The research interest of our team is experimental investigation of superconducting quantum computation and quantum simulation.

As the means and precision of manipulating quantum systems have advanced, the idea of quantum information, namely, processing information based on the basic principles of quantum mechanics, has also become more plausible. Quantum information processing uses quantum resources that have no classical counterparts, such as quantum superposition and entanglement, to process information, and has been shown, both theoretically and experimentally, to have tremendous advantage over classical information processing in certain scenarios. For example, quantum algorithms for integer factorization and searching unsorted database are much more efficient then known classical algorithms. Furthermore, classical simulation of a quantum system is believed to be practically intractable, while quantum simulation, using one quantum system to simulate another one, may be a straightforward and natural solution.

Among the various proposed schemes of realizing quantum computation and quantum simulation, the one based on superconducting quantum circuits appears to be promising, due to the fact that such circuits are relatively easy to fabricate, control, and scale up. Using quantum circuits based on superconducting Josephson junctions, we can build the basic block for quantum information processing, namely, the qubits (quantum bits), as well as controllable coupling between qubits. It is believed by many researchers that quantum computation based on superconducting circuits may first reach the so called Quantum Supremacy, a clear demonstration of the ability of quantum computing devices to solve problems that classical computers practically cannot.

Our team devotes to experimentally advancing the field of superconducting quantum computation and quantum simulation. The current research focus includes:

1. Superconducting quantum chips. We use Josephson-junction-based superconducting quantum devices to build qubits and various qubit-coupling schemes, as well as measurement apparatus approaching quantum limits. Besides widely adapted design, we are also interested in developing novel architectures such as hybrid quantum systems that couple superconducting circuits and other quantum devices.

2. Quantum computation and quantum simulation based on superconducting circuits. We closely collaborate with theorists to explore the possibility of realizing quantum computation and quantum simulation on superconducting quantum chips. Our current interest includes, but limited to, geometric quantum computation, quantum automata, quantum few-body systems, and quantum simulation of exemplary models in condensed matter physics. In addition, we always have a keen interest in using superconducting quantum systems to explore fundamental issues of quantum mechanics.

Professional Experience

◆2021/7 - present: Southern University of Science and Technology, Associate Professor

◆2015/3 - 2021/7: Southern University of Science and Technology, Assistant Professor

◆2009/1 - 2015/2: Rutgers, the State University of New Jersey, Research Associate

◆2006/7 - 2008/7: University of Pennsylvania, Postdoctoral Fellow

◆2005/6 - 2006/6: University of South Carolina, Postdoctoral Fellow

Educational Background

◆1998/9 - 2005/5: University of Maryland, Ph.D.

◆1995/9 - 1998/6: Chinese Academy of Sciences, Institute of Semiconductors, M.S.

◆1991/9 - 1995/6: University of Electronic Science and Technology of China, B.S.

Selected Publications

1.Robust Quantum Gates against Correlated Noise in Integrated Quantum Chips,

Kangyuan Yi, Yong-Ju Hai, Kai Luo, Ji Chu, Libo Zhang, Yuxuan Zhou, Yao Song, Song Liu, Tongxing Yan*, Xiu-Hao Deng*, Yuanzhen Chen*, and Dapeng Yu,

Phys. Rev. Lett.132. 250604  (2024).

2.Experimental realization of two qutrits gate with tunable coupling in superconducting circuits,

Kai Luo, Wenhui Huang, Ziyu Tao, Libo Zhang, Yuxuan Zhou, Ji Chu, Wuxin Liu, Biying Wang, Jiangyu Cui, Song Liu, Fei Yan, Man-Hong Yung*, Yuanzhen Chen*, Tongxing Yan*, and Dapeng Yu, Phys. Rev. Lett. 130, 030603 (2023).

3.Experimental realization of phase-controlled dynamics with hybrid digital-analog approach,

Ziyu Tao, Libo Zhang, Xiaole Li, Jingjing Niu, Kai Luo, Kuangyuan Yi, Yuxuan Zhou, Hao Jia, Song Liu*, Tongxing Yan*, Yuanzhen Chen*, Dapeng Yu,

npj Quantum Information 7:73 (2021).

4.Simulation of higher-order topological phases and related topological phase transitions in a superconducting qubit,  

Jingjing Niu, Tongxing Yan, Yuxuan Zhou, Ziyu Tao, Xiaole Li, Weiyang Liu,

Libo Zhang, Hao Jia, Song Liu*, Zhongbo Yan*, Yuanzhen Chen*, and Dapeng Yu,

Science Bulletin 66, 1168 (2021).

5.Experimental realization of non-adiabatic shortcut to non-Abelian geometric gates,   

Tongxing Yan, Bao-Jie Liu, Kai Xu, Chao Song, Song Liu, Zhensheng Zhang, Hui Deng, Zhiguang Yan, Hao Rong, Keqiang Huang, Man-Hong Yung*, Yuanzhen Chen*, and Dapeng Yu, Phys. Rev. Lett. 122, 080501 (2019).

Contact

◆Email：chenyz@sustech.edu.cn

◆Tel：0755-88018226

◆Address: Room 130, Research Building 2, Department of Physics, Southern University of Science and Technology, No. 1088, Xueyuan Rd., Xili, Nanshan District, Shenzhen, Guangdong, China

◆Zipcode：518055