Personal Homepage

Superconducting quantum circuits, centered on the nonlinear inductance of Josephson junctions, use micro- and nanofabricated artificial circuits to construct quantized, designable, and controllable "artificial atoms". They constitute one of the most competitive physical platforms for realizing universal quantum computation. In this system, qubits, tunable couplers, microwave resonators, and transmission lines together form an on-chip quantum electrodynamics architecture. By applying microwave fields and magnetic-flux biases, one can precisely control the coherent evolution of quantum states, energy-level structures, interaction strengths, and many-body Hamiltonians on nanosecond timescales. This provides a highly controllable platform for investigating fundamental physical problems such as light–matter interaction, open quantum system dynamics, many-body quantum physics, and quantum error correction. In recent years, superconducting quantum computing has made rapid progress in single-qubit gates, two-qubit gates, prototype quantum error-correction experiments, and intermediate-scale quantum processors. Nevertheless, how to further scale up the number of qubits while maintaining high coherence and high-fidelity control, suppressing crosstalk and leakage, and realizing fault-tolerant logical quantum operations remains a central scientific challenge in the field.

Our group has long been engaged in research on scalable superconducting quantum computing, with a focus on understanding and controlling coherence, coupling, and many-body dynamics in artificial quantum systems. We further apply these physical mechanisms to quantum information processing, quantum algorithm demonstrations, and quantum error-correction experiments, laying the foundation for the construction of large-scale fault-tolerant superconducting quantum processors.

Future research will further aim at realizing scalable and fault-tolerant superconducting quantum computation. Building on established micro- and nanofabrication platforms, high-performance cryogenic systems, and room-temperature quantum control and measurement systems, we will focus on the following research directions:

• Research on superconducting quantum device materials, Josephson junction fabrication, and the physical mechanisms of decoherence;

• Physics of crosstalk, leakage, quasiparticle noise, and correlated errors;

• High-fidelity quantum gates, dynamic coupling control, and scalable quantum control methods;

• Quantum error-correction, encoding and decoding, and logical quantum operations for fault-tolerant quantum computation;

• Experiments in quantum simulation, quantum machine learning, and quantum information processing.

We welcome outstanding undergraduate students, graduate students, and young researchers with backgrounds in physics, condensed matter physics, microelectronics, electronic information, quantum information, computer science, automation, mathematics, and related fields. The research directions are suitable for students interested in quantum mechanics, superconducting circuits, microwave engineering, cryogenic experiments, quantum control, quantum error correction, and scalable quantum computing architectures. Applications and inquiries from engineers, postdoctoral researchers, and special research fellows are also warmly welcome.