Electron spins in semiconductor quantum dots are promising candidates of qubits for quantum information processing for their excellent controllability and scalability. In Quantum Device Engineering group, we fabricate two-dimensional arrays of semiconductor quantum dots and study manipulation and readout of single-electron spin qubits towards the realization of large-scale spin-based quantum computers.

Semiconductor-superconductor hybrid nanostructures are physical systems that have shown various intriguing quantum transport phenomena such as gate-tunable supercurrent, Cooper pair splitting and Majorana Fermion. In Quantum Device Engineering group, we fabricate hybrid nanodevices with scalability for practical applications, and study novel quantum transport phenomena in these devices.