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 …

Both theoretical and experimental studies of topological phases in non-Hermitian systems
have made a remarkable progress in the last few years of research. In this article, we review …

We reveal a one-dimensional topological insulating phase induced solely by gain and loss
control in non-Hermitian optical lattices. The system comprises units of four uniformly …

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 review quantum mechanical and optical pseudo-Hermitian systems with an emphasis on
PT-symmetric systems important for optics and electrodynamics. One of the most interesting …

An exactly solvable discrete PT invariant nonlinear Schrödinger-like model is introduced. It
is an integrable Hamiltonian system that exhibits a nontrivial nonlinear PT symmetry. A …

We study the effect of nonlinearity on systems with periodic parity-time (PT) symmetry, and
show that nonlinearity can transform the system from broken to full PT symmetry and vice …

In this paper, via the generalized Darboux transformation, rational soliton solutions are
derived for the parity-time-symmetric nonlocal nonlinear Schrödinger (NLS) model with the …

Symmetry breaking of solitons in a class of one-dimensional parity-time (PT) symmetric
complex potentials with cubic nonlinearity is reported. In generic PT-symmetric potentials …

A two component nonlocal vector nonlinear Schrödinger equation (VNLSE) is considered
with a self-induced parity-time-symmetric potential. It is shown that the system possess a Lax …