Gap solitons in parity-time symmetric moiré optical lattices

OPT OpenIR > 瞬态光学研究室

	Gap solitons in parity-time symmetric moiré optical lattices
	Liu, Xiuye 1,2; Zeng, Jianhua 1,2
作者部门	瞬态光学研究室
	2022-06-22
出处	arXiv
ISSN	23318422
产权排序	1
摘要	Parity-time (PT) symmetric lattices have been widely studied in controlling the flow of waves, and recently moiré superlattices, connecting the periodic and non-periodic potentials, are introduced for exploring unconventional physical properties in physics; while the combination of both and nonlinear waves therein remains unclear. Here, we report a theoretical survey of nonlinear wave localizations in PT symmetric moiré optical lattices, with the aim of revealing localized gap modes of different types and their stabilization mechanism. We uncover the formation, properties, and dynamics of fundamental and higher-order gap solitons as well as vortical ones with topological charge, all residing in the finite band gaps of the underlying linear-Bloch wave spectrum. The stability regions of the localized gap modes are inspected in two numerical ways: linear-stability analysis and direct perturbed simulations. Our results provide an insightful understanding of solitons physics in combined versatile platforms of PT symmetric systems and moiré patterns. Copyright © 2022, The Authors. All rights reserved.
收录类别	EI
语种	英语
出版者	arXiv
EI入藏号	20220213828
文献类型	预印本
条目标识符	http://ir.opt.ac.cn/handle/181661/96055
专题	瞬态光学研究室
作者单位	1.State Key Laboratory of Transient Optics and Photonics, Xi’an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi’an; 710119, China; 2.University of Chinese Academy of Sciences, Beijing; 100049, China
推荐引用方式 GB/T 7714	Liu, Xiuye,Zeng, Jianhua. Gap solitons in parity-time symmetric moiré optical lattices. 2022.

条目包含的文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
Gap solitons in pari（713KB）	预印本		限制开放	CC BY-NC-SA	请求全文