Enhanced sensitivity with nonlinearity-induced exceptional points degeneracy lifting

Abstract Bifurcation of exceptional points (EPs), particularly higher-order EPs, can offer applications in metrology by amplifying sensitivity, but this method suffers from a tradeoff between sensitivity and robustness. To break this constraint, we experimentally introduce nonlinearity into the EP d...

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Bibliographic Details
Main Authors: Haichuan Li, Lei Chen, Wenhao Wu, Hongteng Wang, Tianqi Wang, Yu Zhong, Feifan Huang, Gui-Shi Liu, Yaofei Chen, Yunhan Luo, Zhe Chen
Format: Article
Language:English
Published: Nature Portfolio 2024-04-01
Series:Communications Physics
Online Access:https://doi.org/10.1038/s42005-024-01609-6