Co-Founder & Head of Calibration

Leon Ding

Leon Ding is Co-Founder & Head of Calibration at Atlantic Quantum, where he leads the characterization and calibration of quantum processors.

During his PhD at MIT, Leon pioneered the tunable coupling architecture for fluxonium qubits. This innovative approach not only set a new world record for two-qubit gate fidelity in superconducting quantum computers—previously held by fellow Atlantic Quantum co-founder Youngkyu Sung—but also achieved the lowest error rates across any quantum computing hardware modality.

Leon holds a PhD in Electrical Engineering and Computer Science from MIT and a BS in Physics from the California Institute of Technology (Caltech).

Featured Publications

Rower, D.A., Ding, L., Zhang, H. et al. Suppressing Counter-Rotating Errors for Fast Single-Qubit Gates with Fluxonium. PRX Quantum 5, 040342 (2024).
Ding, L., Hays, M., Sung, Y. et al. High-Fidelity, Frequency-Flexible Two-Qubit Fluxonium Gates with a Transmon Coupler. Physical Review X 13, 031035 (2023).
Sung, Y., Ding, L., Braumüller, J. et al. Realization of High-Fidelity CZ and ZZ-Free iSWAP Gates with a Tunable Coupler. Physical Review X 11, 012058 (2021).
Braumüller, J., Ding, L., Vepsäläinen, A. et al. Characterizing and Optimizing Qubit Coherence Based on SQUID Geometry. Physical Review Applied 13, 054079 (2020).