We present a quantum optics platform featuring minimal components to describe spintronically excited magnon condensates that we use to facilitate driven dissipative phase transitions in a spintronic context. We consider the Dicke model weakly coupled to a non-equilibrium bath with tunable spin accumulation. The latter is inconsistently pumped in a manner reminiscent of experiments with magnet-metal heterostructures. The crux of our analysis is the emergence of hybrid laser superradiant regimes that do not occur in ordinary pumped Dickespin ensembles and can be traced back to spintronic pumping schemes. We interpret the obtained non-equilibrium phase diagrams from both quantum optics and spintronics perspectives, providing a conceptual bridge between the two fields. The outreach of our results concerns the dynamic control of magnon condensates and the frequency-dependent gain medium of quantum optics.

    Source link


    Leave A Reply