Non-Equilibrium Quantum Impurity Physics with Hybrid Light-Matter Systems

Recent advances in quantum electronics allowed to engineer hybrid nano devices made by coupling on chip a quantum dot to a microwave resonator as well as to electron reservoirs maintained at different bias voltages. These systems realize novel platforms to explore non equilibrium quantum impurity physics with light and matter. Focusing on a simple model of a biased quantum dot coupled to a photon mode we elucidate the signatures of the electronic correlations in the phase of the transmitted microwave signal. In addition we illustrate the effect of the electronic degrees of freedom on the photon field, giving rise to anharmonicity, damping and dissipation, and discuss how to control these effects by means of gate and bias voltages.