In this brief review, we summarize and elaborate on some of the nomenclature of polaritonic
phenomena and systems as they appear in the literature on quantum materials and …

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 …

Spin and field textures define the topology of the electric and magnetic fields in vacuum.
These textures can be imposed on matter by light–matter interactions on the nanometer …

We construct optical beams in free space with robust skyrmionic structures in their
polarization fields, both in the electric spin vector for near-circular fields and in the …

A full Poincaré (FP) beam possesses all possible optical spin states in its cross section,
which constitutes an optical analog of a skyrmion. Until now FP beams have been …

Multicomponent Bose–Einstein condensates, quantum Hall systems, and chiral magnetic
materials display twists and knots in the continuous symmetries of their order parameters …

We study the spin vortices and skyrmions coherently imprinted into an exciton–polariton
condensate on a planar semiconductor microcavity. We demonstrate that the presence of a …

Analogies between non-trivial topologies of matter and light have inspired numerous
studies, including defect formation in structured light and topological photonic band …

The spin Hall effect, a key enabler in the field of spintronics, underlies the capability to
control spin currents over macroscopic distances. The effect was initially predicted by …

The availability of large amounts of data and the necessity of processing it efficiently have
led to the rapid development of machine-learning techniques. To name a few examples …