Rigetti reports wafer-scale frequency targeting on a 36-qubit processor

What happened

A preprint posted on 27 August 2026 reports wafer-scale precision in setting transmon frequencies, the step that decides how many usable qubits come off a wafer. The authors report junction resistance tuned to 0.50 per cent, plus or minus 0.05, at 150mm scale, component-level yield of at least 98.8 per cent, and frequency targeting to about 30 MHz in both qubit and qubit-qubit detuning frequencies, on the Cepheus-1-36Q quad-module processor. It is an unreviewed preprint and the only published account of the result.