Recent experimental developments in diverse areas—ranging from cold atomic gases to
light-driven semiconductors to microcavity arrays—move systems into the focus which are …

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 …

Exciton polaritons—quasi-particle excitations consisting of strongly coupled photons and
excitons—present fascinating possibilities for photonic circuits, owing to their strong …

We report on the observation of spontaneous coherent oscillations in a microcavity polariton
bosonic Josephson junction. Condensation of exciton polaritons here takes place under …

Semiconductor microcavities are used to support freely flowing polariton quantum liquids
allowing the direct observation and optical manipulation of macroscopic quantum states …

We demonstrate experimentally the condensation of exciton polaritons through optical
trap**. The nonresonant pump profile is shaped into a ring and projected to a high quality …

Exciton polaritons are widely considered as promising platforms for develo** room-
temperature polaritonic devices, owing to the high-speed propagation and nonlinear …

We present a comprehensive analytical theory of localized nonlinear excitations—dark
solitons—supported by an incoherently pumped, spatially homogeneous exciton-polariton …

The experimental investigation of spontaneously created vortices is of utmost importance for
the understanding of quantum phase transitions towards a superfluid phase, especially for …

Polariton condensates are macroscopic quantum states formed by half-matter half-light
quasiparticles, thus connecting the phenomena of atomic Bose–Einstein condensation …