This article reviews recent theoretical and experimental advances in the fundamental
understanding and active control of quantum fluids of light in nonlinear optical systems. In …

Microcavity exciton‐polaritons are attractive quantum quasi‐particles resulting from strong
light–matter coupling in a quantum‐well‐cavity structure. They have become one of the most …

The coupling of two macroscopic quantum states through a tunnel barrier gives rise to
Josephson phenomena such as Rabi oscillations, the ac and dc effects, or macroscopic self …