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| Main Authors: | , , , |
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| Format: | Preprint |
| Published: |
2024
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2405.08850 |
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| _version_ | 1866916249932398592 |
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| author | Beniwal, Dinesh Laha, Arnab Miranowicz, Adam Ghosh, Somnath |
| author_facet | Beniwal, Dinesh Laha, Arnab Miranowicz, Adam Ghosh, Somnath |
| contents | The fascinating realm of non-Hermitian physics with the interplay of parity (P) and time-reversal (T) symmetry has been witnessing immense attention in exploring unconventional physics at Exceptional Point (EP) singularities. Particularly, the physics of PT-symmetry, anti-PT (APT)-symmetry, and the emergence of EPs have ignited fervor in photonics. Beyond the conventional relation between EP and PT-symmetric phase transitions, this study delves into hosting higher-order EPs in a specially designed APT-symmetric Fabry-Pérot-type microcavity. We unveil the captivating physics of the parametric encirclement schemes to explore the branch-point behaviors of EPs up to order three in terms of successive state-flipping, while optimizing the designed cavity under APT-symmetric constraints. The insights from our findings are poised to boost research in optical metamaterials, meeting the demands of APT-symmetry and paving the way for a novel class of photonic devices. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2405_08850 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Parametrically encircled higher-order exceptional points in anti-parity-time symmetric optical microcavities Beniwal, Dinesh Laha, Arnab Miranowicz, Adam Ghosh, Somnath Optics The fascinating realm of non-Hermitian physics with the interplay of parity (P) and time-reversal (T) symmetry has been witnessing immense attention in exploring unconventional physics at Exceptional Point (EP) singularities. Particularly, the physics of PT-symmetry, anti-PT (APT)-symmetry, and the emergence of EPs have ignited fervor in photonics. Beyond the conventional relation between EP and PT-symmetric phase transitions, this study delves into hosting higher-order EPs in a specially designed APT-symmetric Fabry-Pérot-type microcavity. We unveil the captivating physics of the parametric encirclement schemes to explore the branch-point behaviors of EPs up to order three in terms of successive state-flipping, while optimizing the designed cavity under APT-symmetric constraints. The insights from our findings are poised to boost research in optical metamaterials, meeting the demands of APT-symmetry and paving the way for a novel class of photonic devices. |
| title | Parametrically encircled higher-order exceptional points in anti-parity-time symmetric optical microcavities |
| topic | Optics |
| url | https://arxiv.org/abs/2405.08850 |