Multiterminal Nonreciprocal Routing in an Optomechanical Plaquette via Synthetic Magnetism
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arXiv
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| Format: | Preprint |
| Published: |
2023
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| _version_ | 1866910385074864128 |
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| author | Tang, Zhi-Xiang Xu, Xun-Wei |
| author_facet | Tang, Zhi-Xiang Xu, Xun-Wei |
| contents | Optomechanical systems with parametric coupling between optical (photon) and mechanical (phonon) modes provide a useful platform to realize various magnetic-free nonreciprocal devices, such as isolators, circulators, and directional amplifiers. However, nonreciprocal router with multiaccess channels has not been extensively studied yet. Here, we propose a nonreciprocal router with one transmitter, one receiver, and two output terminals, based on an optomechanical plaquette composing of two optical modes and two mechanical modes. The time-reversal symmetry of the system is broken via synthetic magnetism induced by driving the two optical modes with phase-correlated laser fields. The prerequisites for nonreciprocal routing are obtained both analytically and numerically, and the robustness of the nonreciprocity is demonstrated numerically. Multi-terminal nonreciprocal router in optomechanical plaquette provides a useful quantum node for development of quantum network information security and realization of quantum secure communication. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2308_15379 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Multiterminal Nonreciprocal Routing in an Optomechanical Plaquette via Synthetic Magnetism Tang, Zhi-Xiang Xu, Xun-Wei Quantum Physics Optics Optomechanical systems with parametric coupling between optical (photon) and mechanical (phonon) modes provide a useful platform to realize various magnetic-free nonreciprocal devices, such as isolators, circulators, and directional amplifiers. However, nonreciprocal router with multiaccess channels has not been extensively studied yet. Here, we propose a nonreciprocal router with one transmitter, one receiver, and two output terminals, based on an optomechanical plaquette composing of two optical modes and two mechanical modes. The time-reversal symmetry of the system is broken via synthetic magnetism induced by driving the two optical modes with phase-correlated laser fields. The prerequisites for nonreciprocal routing are obtained both analytically and numerically, and the robustness of the nonreciprocity is demonstrated numerically. Multi-terminal nonreciprocal router in optomechanical plaquette provides a useful quantum node for development of quantum network information security and realization of quantum secure communication. |
| title | Multiterminal Nonreciprocal Routing in an Optomechanical Plaquette via Synthetic Magnetism |
| topic | Quantum Physics Optics |
| url | https://arxiv.org/abs/2308.15379 |