Relying on the State Key Laboratory of Solid State Microstructures, the Superconducting Quantum Device Research Group of Nanjing University is one of the earliest research groups in China to conduct research on superconducting quantum computing. A superconducting quantum computing system consists of quantum chips and their packaging, dilution refrigerators, and microwave measurement and control systems. The fabrication of quantum chips involves steps such as thin-film deposition, photolithography, etching, electron beam lithography, electron beam evaporation, and lift-off. The fabricated quantum chips are encapsulated in sample holders and mounted under the MC plate of the dilution refrigerator. Quantum chips are manipulated using measurement and control instruments such as microwave sources and arbitrary waveform generators.

Yu Yang, the leader of the team, is a professor and doctoral supervisor at Nanjing University, a member of the expert group for major research programs, a member of the Jiangsu Provincial Political Consultative Conference, a Distinguished Professor of the Changjiang Scholars Award Program of the Ministry of Education, and a recipient of the National Science Fund for Distinguished Young Scholars. He is also one of the earliest researchers in the world to carry out experimental research on superconducting qubits. Meanwhile, Professor Yu Yang’s team is the earliest team in China to engage in superconducting quantum computing, currently having 11 full-time staff members and 32 doctoral and master’s students.