CONICET | Buscador de Institutos y Recursos Humanos

We study Landau-Zener-Stückelberg (LZS) interferometry in a cQED architecture under the effects ofdissipation. To be specific, we consider a superconducting qubit driven by a dc + ac signal and coupled to atransmission line resonator, but our results are valid for general qubit-resonators devices. To take the environmentinto account, we assume that the resonator is coupled to an Ohmic quantum bath. The Floquet-Born-Markovmaster equation is numerically solved to obtain the dynamics of the system for an arbitrary amplitude of the driveand different timescales. We unveil important differences in the resonant patterns between the strong couplingand ultrastrong coupling regimes in the qubit-resonator interaction, which are mainly due to the magnitude ofphotonic gaps in the energy spectrum of the system.We identify in the LZS patterns the contribution of the qubitgap and the photonic gaps, showing that for large driving amplitudes the patterns present a weaving structuredue to the combined intercrossing of the different gaps contributions.