Our team focuses on the in-house development and measurement of semiconductor spin-qubit devices based on silicon-germanium heterostructures. The goal of this research is to explore quantum phenomena in these systems, develop new qubit architectures, and advance methods for high-fidelity control and readout. Our efforts broadly span two complementary directions: advancing measurement and control using state-of-the-art devices from the LQC Qubits for Computing Foundry, and pursuing targeted in-house device development to investigate materials, processing, and design concepts.
Qubit physics and architectures: We study the underlying quantum behavior of semiconductor spin systems to inform new device concepts and improve operational robustness, with emphasis on few-qubit experiments that reveal performance limits and design trade-offs.
Advanced measurement schemes (QCF devices): For our primary platform, we leverage cutting-edge spin-qubit chips provided through the LQC Foundry to develop and test novel measurement and control approaches, enabling improved state discrimination and deeper insight into device behavior.
Hole spin qubits: As a complementary thrust, we investigate hole spin qubits realized in germanium quantum wells grown in-house by molecular beam epitaxy. This work explores strongly spin-orbit–coupled platforms and their implications for coherence, control, and future device architectures.
Dilution refrigerator outfitted for spin qubit device measurements.