2020
DOI: 10.1103/physrevlett.125.147202
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Unconventional Singularity in Anti-Parity-Time Symmetric Cavity Magnonics

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Cited by 146 publications
(78 citation statements)
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“…Interestingly, anti-PTsymmetry [188][189][190][191] -the counterpart of PT symmetry-has also been demonstrated in hybrid magnonics. 192,193 In these demonstrations, purely imaginary coupling between two interacting modes can be obtained through dissipative coupling, resulting in properties that are conjugate to PT-symmetric systems. In anti-PT-symmetric hybrid magnonic systems, EPs are also observed at the transition from the anti-PT-symmetric phase to the anti-PT-symmetry-broken phase.…”
Section: E Non-hermitian Physics and Exceptional Pointsmentioning
confidence: 99%
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“…Interestingly, anti-PTsymmetry [188][189][190][191] -the counterpart of PT symmetry-has also been demonstrated in hybrid magnonics. 192,193 In these demonstrations, purely imaginary coupling between two interacting modes can be obtained through dissipative coupling, resulting in properties that are conjugate to PT-symmetric systems. In anti-PT-symmetric hybrid magnonic systems, EPs are also observed at the transition from the anti-PT-symmetric phase to the anti-PT-symmetry-broken phase.…”
Section: E Non-hermitian Physics and Exceptional Pointsmentioning
confidence: 99%
“…In anti-PT-symmetric hybrid magnonic systems, EPs are also observed at the transition from the anti-PT-symmetric phase to the anti-PT-symmetry-broken phase. In addition, such systems allow the observation of other intriguing phenomena such as bound-state-in-continuum (BIC), 192 where the hybrid modes exhibits maximal coherence as well as slow light capability.…”
Section: E Non-hermitian Physics and Exceptional Pointsmentioning
confidence: 99%
“…Note added.-Recently, we became aware of a study presenting an infinite group delay and abrupt transition in a magnonic non-Hermitian system [33].…”
Section: Acknowledgmentsmentioning
confidence: 99%
“…Among various types of multiple-path-induced interference, the Fano resonance [2] and its typical manifestations, the electromagnetically induced transparency (EIT) and electromagnetically induced absorption (EIABS) [3,4], are the most well-known ones. The Fano resonance and EIT-like (or chiral EIT [34], and infinite slow light [33] have recently been realized around exceptional points. Motivated by their potential applications in rapid transitions between fast and slow light, which facilitate coherent state storage and retrieval, it is highly desirable to have experimental realizations of in situ tunable and switchable absorption, transparency, and even amplification.…”
Section: Introductionmentioning
confidence: 99%
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