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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/2406.01060 |
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| _version_ | 1866912117449293824 |
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| author | He, Wen-Di Fan, Xiao-Hong Liu, Ming-Yue Zhang, Guo-Qiang Li, Hai-Chao Xiong, Wei |
| author_facet | He, Wen-Di Fan, Xiao-Hong Liu, Ming-Yue Zhang, Guo-Qiang Li, Hai-Chao Xiong, Wei |
| contents | We theoretically study diverse exceptional points (EPs) in an experimentally feasible magno-optomechanics consisting of an optomechanical subsystem coupled to a magnomechanical subsystem via physically direct contact. By adiabatically eliminating both the cavity and the Kittel mode, dissipative and parity-time symmetric exceptional points can be observed. When only the cavity mode is eliminated, a second (third) -order pseudo-Hermitian EP emerges for nondegenerate (degenerate) mechanical modes. The distinct dynamical behavior of two mechanical modes around these EPs are further studied. Our proposal provides a promising way to engineer diverse EPs and quantify non-Hermitian phase transition with exceptional dynamical behavior in magno-optomechanics. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2406_01060 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Mechanical dynamics around higher-order exceptional point in magno-optomechanics He, Wen-Di Fan, Xiao-Hong Liu, Ming-Yue Zhang, Guo-Qiang Li, Hai-Chao Xiong, Wei Quantum Physics We theoretically study diverse exceptional points (EPs) in an experimentally feasible magno-optomechanics consisting of an optomechanical subsystem coupled to a magnomechanical subsystem via physically direct contact. By adiabatically eliminating both the cavity and the Kittel mode, dissipative and parity-time symmetric exceptional points can be observed. When only the cavity mode is eliminated, a second (third) -order pseudo-Hermitian EP emerges for nondegenerate (degenerate) mechanical modes. The distinct dynamical behavior of two mechanical modes around these EPs are further studied. Our proposal provides a promising way to engineer diverse EPs and quantify non-Hermitian phase transition with exceptional dynamical behavior in magno-optomechanics. |
| title | Mechanical dynamics around higher-order exceptional point in magno-optomechanics |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2406.01060 |