Extended Data Fig. 4: State preparation and measurement.
From: Industry-compatible silicon spin-qubit unit cells exceeding 99% fidelity
GST-estimated SPAM operations, with the initial state represented as a density matrix and the terminating parity measurement as a POVM, yield a \(| \downarrow \downarrow \rangle \) state initialization fidelity of Finit = 99.996(49)% and an even/odd parity measurement of Fmeas = 99.959(59)%, respectively. The combined state preparation and measurement fidelity is calculated to FSPAM = 99.95(8)%. Error bars represent the 95% confidence level.
