Fig. 5. Examples of obtained image data.

a Series of real space images for the system initially prepared in the qubit excited state of the quantum Rabi Hamiltonian, with $\frac{{\omega }_q}{2\pi }=2380\left(40\right)\mathrm{Hz}$ and $\frac{g}{\omega }=6.5\left(5\right)$, after deconvolution of the obtained raw absorption imaging data of the atomic ensemble accounting for the point spread function of the used optics. From left to right the interaction time increases in steps of 50 μs. Despite the limited instrumental optical resolution, a splitting up of the atomic cloud is observed. b Series of time-of-flight images of the atomic cloud, for the same system state as in a. The numbers on the left-hand side represent the measured atomic momentum p, while the on the right-hand side the corresponding quasimomentum q is given.