Recent progress on nonlinear properties of parity-time (PT)-symmetric systems is
comprehensively reviewed in this article. PT symmetry started out in non-Hermitian quantum …

One of the challenges of the modern photonics is to develop all‐optical devices enabling
increased speed and energy efficiency for transmitting and processing information on an …

We perform a survey of some recent theoretical and experimental studies on
multidimensional (two-and three-dimensional) localized structures in optical and matter …

A system of two coupled semiconductor-based resonators is studied when lasing around an
exceptional point. We show that the presence of nonlinear saturation effects can have …

The Darboux transformation (DT) for the integrable nonlocal nonlinear Schrödinger equation
(nNLSE) is constructed with the aid of loop group method. Based on the DT, we derive …

We provide an experimental framework where periodically driven PT-symmetric systems can
be investigated. The setup, consisting of two ultra high frequency oscillators coupled by a …

We consider bright solitons supported by a symmetric inhomogeneous defocusing
nonlinearity growing rapidly enough toward the periphery of the medium, combined with an …

A-symmetric nonlinear Schrödinger dimer is a two-site discrete nonlinear Schrödinger
equation with one site losing and the other one gaining energy at the same rate. In this …

Abstract Parity-time (PT)-symmetry in optics is a condition whereby the real and imaginary
parts of the refractive index across a photonic structure are deliberately balanced. This …

The standard PT-symmetric dimer is a linearly coupled two-site discrete nonlinear
Schrödinger equation with one site losing and the other one gaining energy at the same …