Tailoring $\mathcal{PT}$-symmetric soliton switch

TL;DR

This paper demonstrates a highly efficient soliton switching mechanism in a $ ext{PT}$-symmetric coupled nonlinear system, achieving near-perfect energy transfer with minimal power by adjusting the system length.

Contribution

It introduces a novel approach to soliton switching in $ ext{PT}$-symmetric systems by optimizing the system length for improved efficiency and lower power requirements.

Findings

Achieves 99.99% energy efficiency in soliton switching.

Operates effectively at a system length of 2π, unlike conventional systems.

Uses ultra-low critical power for switching.

Abstract

We theoretically demonstrate soliton steering in $\mathcal{PT}$-symmetric coupled nonlinear dimers. We show that if the length of the $\mathcal{PT}$-symmetric system is set to $2\pi$ contrary to the conventional one which operates satisfactorily well only at the half-beat coupling length, the $\mathcal{PT}$ dimer remarkably yields an ideal soliton switch exhibiting almost 99.99% energy efficiency with an ultra-low critical power.