Schematic of new scalable analogue calibration scheme. Swap (blue) and single-photon (red) spectroscopy is used to extract dressed coupling rates ( {g} ) and qubit frequencies ( {ω qi} ) of two-qubit analogue evolution ( U A ), which are converted to bare qubit and coupler frequencies ({ ω q i }, { ω c j }) through detailed device modelling. The bare frequencies allow for establishing the device Hamiltonian of the full system, which is finally projected to a spin Hamiltonian, H s .
