Chirality of topological gap solitons in bosonic dimer chains

TL;DR

This paper investigates the unique chiral properties of topological gap solitons in 1D bosonic dimer chains, revealing their pseudospin textures and anisotropic responses to localized potentials.

Contribution

It introduces the concept of chiral topological gap solitons with non-trivial pseudospin textures in bosonic dimer chains, highlighting their anisotropic behavior.

Findings

Solitons exhibit non-trivial sublattice pseudospin textures.

Chiral nature demonstrated through anisotropic responses.

Topological gap solitons show unique pseudospin textures.

Abstract

We study gap solitons which appear in the topological gap of 1D bosonic dimer chains within the mean-field approximation. We find that such solitons have a non-trivial texture of the sublattice pseudospin. We reveal their chiral nature by demonstrating the anisotropy of their behavior in presence of a localized energy potential.