  We investigate the non-classical states of light that emerge in a microwave
resonator coupled to a periodically-driven electron in a nanowire double
quantum dot (DQD). Under certain drive configurations, we find that the
resonator approaches a thermal state at the temperature of the surrounding
substrate with a chemical potential given by a harmonic of the drive frequency.
Away from these thermal regions we find regions of gain and loss, where the
system can lase, or regions where the DQD acts as a single-photon source. These
effects are observable in current devices and have broad utility for quantum
optics with microwave photons.
