Silicon Quantum Photonic Chips

Exploiting defect spins in silicon enables device integration on the silicon platform, taking advantage from the scalability ensured by the mature silicon technology. Specifically, our group focuses on building silicon-based on-chip quantum platform, which integrates defect spin qubits and quantum memories, with photonic circuit components such as planar out-couplers, low-loss optical cavities, heterogeneously integrated reconfigurable photonic elements (e.g. EOMs) that can be controlled optically or electrically, and highly efficient superconducting nanowire single-photon detectors (SNSPDs). We aim to utilize these hybrid integrated silicon quantum photonic chips as multiplexed quantum registers and repeaters, which are distributed at distant quantum nodes, for information processing and quantum networking applications.