Circuit stability Archives - IEEE Transactions on Quantum Engineering

Rapid Autotuning of a SiGe Quantum Dot Into the Single-Electron Regime With Machine Learning and RF-Reflectometry FPGA-Based Measurements

March 4, 2026Marc-Antoine Roux, Joffrey Rivard, Victor Yon, Alexis Morel, Dominic Leclerc, Claude Rohrbacher, El Bachir Ndiaye, Felice Francesco Tafuri, Brendan Bono, Stefan Kubicek, Roger Loo, Yosuke Shimura, Julien Jussot, Clément Godfrin, Danny Wan, Kristiaan De Greve, Marc-André Tétrault, Dominique Drouin, Christian Lupien, Michel Pioro-Ladrière, Eva Dupont-FerrierQuantum ComputingCircuit stability, Field programmable gate arrays, Logic gates, Quantum dots, Semiconductor device measurement, Silicon germanium, Time measurement, Tuning, Velocity measurement, Voltage measurement

Abstract: Spin qubits need to operate within a very precise voltage space around charge state transitions to achieve high-fidelity gates. However, the stability diagrams that allow the identification of the desired charge states are long to acquire. Moreover, the voltage space to search for the desired charge state increases quickly with the number of qubits. […]