Corrado de Lisio

TL;DR: This work proposes and validate experimentally a method to detect topological properties in the bulk of one-dimensional chiral systems and proves the robustness of the measure by introducing dynamical disorder in the system.

TL;DR: In this article, the authors present a method to generate vector beams of light having polarization singularities on their axis, via partial spin-to-orbital angular momentum conversion in a suitably patterned liquid crystal cell.

TL;DR: In this paper, a photonic implementation of the quantum walk in the orbital angular momentum space of light is presented, where the whole process develops in a single light beam, with no need of interferometers, and it requires optical resources scaling linearly with the number of steps.

TL;DR: In this article, a photonic quantum walk is used to detect topological quantum transition in one-dimensional (1D) periodic systems, showing both the trivial and non-trivial topologies associated with chiral symmetry.

TL;DR: Inspired by conceptually similar phenomena occurring in the polarization pattern characterizing the skylight, it is shown how perturbations that break the symmetry of radially symmetric vector beams lead to the formation of a pair of fundamental and stable singularities, i.e. points of circular polarization.