# Symmetry breaking with opposite stability between bifurcated asymmetric solitons in parity-time-symmetric potentials

## TL;DR

This paper introduces a novel symmetry-breaking bifurcation in optical systems with parity-time-symmetric potentials, where asymmetric soliton branches display opposite stability, enabling unidirectional high-intensity light propagation.

## Contribution

It reports a new type of symmetry-breaking bifurcation with opposite stability in asymmetric solitons within PT-symmetric potentials, contrasting previous bifurcations.

## Key findings

- Opposite stability in bifurcated asymmetric soliton branches.
- Potential for unidirectional light beam propagation.
- Distinct from all known symmetry-breaking bifurcations.

## Abstract

We report a new type of symmetry-breaking bifurcation of solitons in optical systems with parity-time-symmetric potentials. In this bifurcation, the two bifurcated branches of asymmetric solitons exhibit opposite stability, which contrasts all previous symmetry-breaking bifurcations in conservative and non-conservative systems. We show that this novel symmetry-breaking bifurcation can be exploited to achieve unidirectional propagation of high-intensity light beams in parity-time-symmetric potentials.