Fig. 1
From: Experimentally simulating the dynamics of quantum light and matter at deep-strong coupling

Digital-analogue quantum Rabi simulation using phase-controlled parameter tuning. a Parity dynamics of the ideal quantum Rabi model in the degenerate-qubit case \(\left( {\omega _{\rm{q}}^{\rm{R}} = 0} \right)\) for qubit (green) and resonator (red) in coupling regimes: \(r = {g^{\rm{R}}}{\rm{/}}\omega _{\rm{r}}^{\rm{R}} = 0.1\) (dotted), 0.5 (dashed) and 1.0 (solid). In this example, g was chosen to match the experimentally observed value of g/2π = 1.79 MHz. b Two-transmon, three-resonator cQED chip (detailed description in Supplementary Notes 2 and 3). c Sequence schematic for second-order Trotterisation. The rotating frame defining the simulated resonator frequency (ω r) is controlled via the Q R bit-flip pulse phases. d Example simplified experimental pulse sequence for 5 Trotter steps followed by a photon parity measurement.