Quantum metrology with higher-order exceptional points in atom-cavity magnonics

Exceptional points (EPs), which arose early from non-Hermitian physics, significantly amplify the system's response to minor perturbations, and they act as a useful concept to enhance measurement in metrology. In particular, such a metrological enhancement grows dramatically with the EP's...

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Bibliographic Details
Main Authors: Minwei Shi, Guzhi Bao, Jinxian Guo, Weiping Zhang
Format: Article
Language:English
Published: American Physical Society 2025-05-01
Series:Physical Review Research
Online Access:http://doi.org/10.1103/PhysRevResearch.7.L022034
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