| Summary: | We give a pedagogical introduction to the basic concepts of quantum fluids of light and to the different techniques that are being developed to exploit driving and dissipation to stabilize and manipulate interesting many-body states in quantum fluids of light in cavity configurations. In the weakly interacting regime, this approach has allowed to study, among others, superfluid light, nonequilibrium Bose–Einstein condensation, photonic analogs of Hall effects, and is opening the way towards the realization of a new family of analog models of gravity. In the strongly interacting regime, the recent observations of Mott insulators and baby Laughlin fluids of light are opening promising avenues towards the study of novel strongly correlated many-body states.
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