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 …

The first good prediction of the multipole soliton solution for the non-integrable equation, ie,
the saturable nonlinear Schrödinger equation under the PT-symmetric potential, is achieved …

Parity-time (PT) symmetry is nowadays an active area of research, having an impact in both
science and technology. Parity-time concepts first originated within the framework of …

Controlling light transport in nonlinear active environments is a topic of considerable interest
in the field of optics. In such complex arrangements, of particular importance is to devise …

A comparative review is given of some well-known and some recent results obtained in
studies of two-and three-dimensional (2D and 3D) solitons, with emphasis on states carrying …

The phenomenon of Bose–Einstein condensation is a phase transition originally predicted
by Bose and Einstein in 1924. In particular, it was shown that below a critical temperature T …

Analytical light-bullet solutions of a (3+ 1)-dimensional nonlinear Schrödinger equation with
inhomogeneous diffraction or dispersion and nonlinearity in the presence of the harmonic …

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 …

The interaction of fractional diffraction and parity-time (PT) symmetric would bring some
unique properties to certain physical system. Here we report a spontaneous symmetry …