Vortex clusters and their active control in a cold Rydberg atomic system with PT-symmetric Bessel potential

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外文摘要：We propose an approach for generating robust two-dimensional(2D)vortex clusters(VCs)in a Rydberg atomic system by utilizing parity-time(PT)symmetric optical Bessel potential.We show that the system supports novel multi-core VCs with four and eight cores,corresponding to topological charges 2 and 4,respectively.The stability of these VCs can be dynamically adjusted through the manipulation of the gain-loss component,Kerr nonlinearities,and the degree of nonlocality inherent in the Rydberg atoms.These VCs are confined within the first lattice well of the Bessel potential,and both the power and width of lights undergo a quasi-periodic breathing phenomenon,which is attributed to the power exchange between the light fields and Bessel potential.Both self-attractive and self-repulsive Kerr interactions can sustain robust VCs within this system.The insights presented here not only facilitate the creation and manipulation of 2D VCs through PT-symmetric potentials but also pave the way for potential applications in optical information processing and transmission.

外文关键词：

vortex clustersPT symmetryBessel potentialRydberg-Rydberg interaction

作者：

范灼、石逸、王航、赵元、彭微、徐四六

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作者单位：

Key Laboratory of Optoelectronic Sensing and Intelligent Control,Hubei University of Science and Technology,Xianning 437100,China

School of Biomedical Engineering and Imaging,Xianning Medical College,Hubei University of Science and Technology,Xianning 437100,China

School of Electronic and Information Engineering,Hubei University of Science and Technology,Xianning 437100,China

出版年：

2024

DOI：

10.1088/1674-1056/ad8073

中国物理B(英文版)

中国物理学会和中国科学院物理研究所

中国物理B(英文版)

CSTPCDEI

影响因子：0.995

ISSN：1674-1056

年,卷(期)：2024.33(12)