典型文献
Anti-PT-symmetric Kerr gyroscope
文献摘要：
Non-Hermitian systems can exhibit unconventional spectral singularities called exceptional points (EPs).Various EP sensors have been fabricated in recent years,showing strong spectral responses to extemal signals.Here we propose how to achieve a nonlinear anti-parity-time (APT) gyroscope by spinning an optical resonator.We show that,in the absence of any nonlinearity,the sensitivity or optical mode splitting of the linear device can be magnified up to 3 orders compared to that of the conventional device without EPs.Remarkably,the APT symmetry can be broken when including the Kerr nonlinearity of the materials and,as a result,the detection threshold can be significantly lowered,i.e.,much weaker rotations which are well beyond the ability of a linear gyroscope can now be detected with the nonlinear device.Our work shows the powerful ability of APT gyroscopes in practice to achieve ultrasensitive rotation measurement.
文献关键词：
中图分类号：
作者姓名：
Huilai Zhang;Meiyu Peng;Xun-Wei Xu;Hui Jing
作者机构：
Key Laboratory of Low-Dimensional Quantum Structures and Quantum Control of Ministry of Education,Department of Physics and Synergetic Innovation Center for Quantum Effects and Applications,Hunan Normal University,Changsha 410081,China
文献出处：
引用格式：
[1]Huilai Zhang;Meiyu Peng;Xun-Wei Xu;Hui Jing-.Anti-PT-symmetric Kerr gyroscope)[J].中国物理B（英文版）,2022(01):99-105
A类：
extemal,magnified,gyroscopes
B类：
Anti,symmetric,Kerr,Non,Hermitian,systems,exhibit,unconventional,spectral,singularities,called,exceptional,points,EPs,Various,sensors,have,been,fabricated,recent,years,showing,strong,responses,signals,Here,propose,achieve,anti,parity,APT,by,spinning,optical,resonator,We,that,absence,any,nonlinearity,sensitivity,mode,splitting,device,up,orders,compared,without,Remarkably,symmetry,broken,when,including,materials,result,detection,threshold,significantly,lowered,much,weaker,rotations,which,well,beyond,ability,now,detected,Our,work,shows,powerful,practice,ultrasensitive,measurement
AB值：
0.57749
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