Shimeng Xi
PhD Student, University of Glasgow
My work targets the materials and interfaces that limit superconducting-qubit coherence. I design and fabricate Nb-trilayer Josephson junctions, optimise oxide formation and interface cleanliness with focused pulsed-laser trimming that provides bidirectional, large-percentage tuning of junction resistance/critical current for deterministic, on-chip calibration. This enables local qubit-frequency setting, reduces device-to-device variability, and maintains or improve focuses on the materials and interfaces that limit the coherence of superconducting qubits coherence with a much larger tuning window than uniform thermal annealing. I am currently a Ph.D. researcher at the University of Glasgow. I got a B.Eng. in Electrical Engineering and Automation and an M.Sc. in Electronics & Electrical Engineering from the University of Glasgow.