Fig. 2
From: Coherent microwave-photon-mediated coupling between a semiconductor and a superconducting qubit
Resonant interaction between the DQD charge qubit, the SQUID array resonator and the transmon. a Energy level diagram of the DQD-SQUID array-transmon system for the bias point considered in panel (b). The energy levels are colored in accordance with the code used in Fig. 1. b Reflectance \(|S_{11}^{{\mathrm{Sq}}}|\) of the SQUID array resonator hybridized with the transmon and DQD as a function of the DQD detuning δ at the bias point discussed in the main text. Red dots are obtained by numerical diagonalization of the system Hamiltonian [see Eq. (1) in Supplementary Note 2], using parameters extracted from independent spectroscopy measurements
