Vortex solitons in topological disclination lattices-Reference-Cited by-同舟云学术

Vortex solitons in topological disclination lattices

Published:2024-01-22 Issue:0 Volume:0 Page:
ISSN:2192-8606
Container-title:Nanophotonics
language:en
Short-container-title:

Author:

Huang Changming¹^ORCID,Shang Ce²^ORCID,Kartashov Yaroslav V.³^ORCID,Ye Fangwei⁴^ORCID

Affiliation:

1. Department of Physics , Changzhi University , Changzhi , Shanxi 046011 , China

2. King Abdullah University of Science and Technology (KAUST), Physical Science and Engineering Division (PSE) , Thuwal 23955-6900 , Saudi Arabia

3. Institute of Spectroscopy, Russian Academy of Sciences , 108840, Troitsk , Moscow , Russia

4. School of Physics and Astronomy, Shanghai Jiao Tong University , Shanghai 200240 , China

Abstract

Abstract The existence of thresholdless vortex solitons trapped at the core of disclination lattices that realize higher-order topological insulators is reported. The study demonstrates the interplay between nonlinearity and higher-order topology in these systems, as the vortex state in the disclination lattice bifurcates from its linear topological counterpart, while the position of its propagation constant within the bandgap and localization can be controlled by its power. It is shown that vortex solitons are characterized by strong field confinement at the disclination core due to their topological nature, leading to enhanced stability. Simultaneously, the global discrete rotational symmetry of the disclination lattice imposes restrictions on the maximal possible topological charge of such vortex solitons. The results illustrate the strong stabilizing action that topologically nontrivial structures may exert on excited soliton states, opening new prospects for soliton-related applications.

Publisher

Walter de Gruyter GmbH

Subject

Electrical and Electronic Engineering,Atomic and Molecular Physics, and Optics,Electronic, Optical and Magnetic Materials,Biotechnology

Link

https://www.degruyter.com/document/doi/10.1515/nanoph-2023-0790/pdf

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