Optically Interfaced Solid-State Spins

Optically interfaced solid-state spins are a promising platform for quantum science and technology, enabling high-fidelity state initialization and readout, long-lived quantum memory, and quantum entanglement via optical transitions that coherently connect spins and photons. Leveraging mature techniques developed in electron spin resonance, quantum optics, and material engineering, our group creates and studies these defect-based electron spin qubits (and long-lived nuclear ancilla spins) in semiconductors such as silicon.

Our group is particularly interested in telecom interfaced solid-state spin qubits, such as rare-earth ions (e.g. Erbium) and radiation damage centers (e.g. T-centers) in silicon, aiming for applications in quantum networks and information processing. Specifically, we are interested in developing new techniques and protocols to manipulate and readout these qubits, generate indistinguishable photons and spin-photon entanglement, build nuclear-spin-based long-lived quantum memories, and analyze many-body physics of strongly interacting qubits.