Readout sweet spots for spin qubits with strong spin-orbit interaction
This work models charge-sensing readout for semiconductor spin qubits in double quantum dots using a QMQ model. It identifies a 'readout sweet spot'—a specific device configuration where strong spin-orbit interaction and tunable g-tensors minimize detrimental back-action effects, suppressing leakage and maximizing measurement purity for high-fidelity quantum processors.