Robust exceptional point of arbitrary order in coupled spinning cylinders

Exceptional points (EPs), i.e., non-Hermitian degeneracies at which eigenvalues and eigenvectors coalesce, can be realized by tuning the gain/loss contrast of different modes in non-Hermitian systems or by engineering the asymmetric coupling of modes. Here we demonstrate a mechanism that can achieve...

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Veröffentlicht in:	arXiv.org 2021-05
Hauptverfasser:	Shi, Hongkang, Yang, Zheng, Zhang, Chengzhi, Cheng, Yuqiong, Chen, Yuntian, Wang, Shubo
Format:	Artikel
Sprache:	eng
Schlagworte:	Coupling Cylinders Dielectric waveguides Eigenvalues Eigenvectors Evanescent waves Excitation Isolators Linear polarization Perturbation Physics - Optics Plane waves Robustness Spin-orbit interactions
Online-Zugang:	Volltext
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