Two-Dimensional Gap Solitons in Parity-Time Symmetry Moire Optical Lattices with Rydberg-Rydberg Interaction

被引：13

作者：

Li, Bin-Bin ^{[1
,2
]}

Zhao, Yuan ^{[1
,2
]}

Xu, Si-Liu ^{[1
,2
,3
]}

Zhou, Qin ^{[4
]}

Fu, Qi-Dong ^{[5
]}

Ye, Fang-Wei ^{[5
]}

Hua, Chun-Bo ^{[2
,3
]}

Chen, Mao-Wei ^{[1
,2
]}

Hu, Heng-Jie ^{[2
,3
]}

Zhou, Qian-Qian ^{[2
,3
]}

Qiu, Zhang-Cai ^{[2
,3
]}

机构：

[1] Hubei Univ Sci & Technol, Xianning Med Coll, Sch Biomed Engn & Med Imaging, Xianning 437100, Peoples R China

[2] Hubei Univ Sci & Technol, Lab Optoelect Informat & Intelligent Control, Xianning 437100, Peoples R China

[3] Hubei Univ Sci & Technol, Sch Elect & Informat Engn, Xianning 437100, Peoples R China

[4] Wuhan Text Univ, Sch Math & Phys Sci, Wuhan 430200, Peoples R China

[5] Shanghai Jiao Tong Univ, Sch Phys & Astron, Shanghai 200240, Peoples R China

来源：

CHINESE PHYSICS LETTERS | 2023年 / 40卷 / 04期

基金：

中国国家自然科学基金;

关键词：

Atomic system - Gap soliton - Higher dimensions - Non-linear optical - Optical physics - Paritytime symmetries - Rydberg - Rydberg interaction - Two-dimensional - Two-dimensional solitons;

D O I：

10.1088/0256-307X/40/4/044201

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Realizing single light solitons that are stable in high dimensions is a long-standing goal in research of nonlinear optical physics. Here, we address a scheme to generate stable two-dimensional solitons in a cold Rydberg atomic system with a parity-time (PT) symmetric moire optical lattice. We uncover the formation, properties, and their dynamics of fundamental and two-pole gap solitons as well as vortical ones. The PT symmetry, lattice strength, and the degrees of local and nonlocal nonlinearity are tunable and can be used to control solitons. The stability regions of these solitons are evaluated in two numerical ways: linear-stability analysis and time evolutions with perturbations. Our results provide an insightful understanding of solitons physics in combined versatile platforms of PT-symmetric systems and Rydberg-Rydberg interaction in cold gases.

引用

页数：6

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