Iacopo Carusotto

TL;DR: Topological photonics is a rapidly emerging field of research in which geometrical and topological ideas are exploited to design and control the behavior of light as mentioned in this paper, which holds great promise for applications.

TL;DR: In this paper, a review of recent theoretical and experimental advances in the fundamental understanding and active control of quantum fluids of light in nonlinear optical systems is presented, from the superfluid flow around a defect at low speeds to the appearance of a Mach-Cherenkov cone in a supersonic flow, to the hydrodynamic formation of topological excitations such as quantized vortices and dark solitons at the surface of large impenetrable obstacles.

TL;DR: In this article, the existence of superfluidity in polaritons is investigated in terms of the Landau criterion and manifests itself as the suppression of scattering from defects when the flow velocity is slower than the speed of sound in the fluid.

TL;DR: In this article, a planar microcavity photon mode strongly coupled to a semiconductor inter-subband transition in presence of a two-dimensional electron gas is described. And the quantum properties of the ground state (a two-mode squeezed vacuum), which can be tuned in situ by changing the value of the Rabi frequency, e.g., through an electrostatic gate.

TL;DR: In this paper, the spontaneous formation of pinned quantized vortices in the Bose-condensed phase of a polariton fluid was observed in a solid state system made of exciton polaritons.