Direction switchable single-photon emitter using a Rydberg polariton
Fuente:
arXiv
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| Autores principales: | , , , , , , , |
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| Formato: | Preprint |
| Publicado: |
2025
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| Materias: | |
| Acceso en línea: | |
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| _version_ | 1866914549881372672 |
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| author | Li, Changcheng Shi, Xiao-Feng Jiao, Yuechun Yang, Jiuheng Bai, Jingxu Adams, C. Stuart Jia, Suotang Zhao, Jianming |
| author_facet | Li, Changcheng Shi, Xiao-Feng Jiao, Yuechun Yang, Jiuheng Bai, Jingxu Adams, C. Stuart Jia, Suotang Zhao, Jianming |
| contents | All-optical redirection or routing of single photons is essential for quantum networks. Although studied in various systems both in theory and experiment, the redirection of single photons with many output ports, compatible with large-scale photonic circuits, still needs to be explored. Here, we demonstrate a direction switchable single-photon emitter using a Rydberg polariton. The Rydberg component of the stored photon is changed using a stimulated Raman transition with a specific intermediate state. By adjusting the direction of the retrieval laser, we can redirect the emitted photon into a rich variety of alternative modes. Building upon this scheme, we propose a quantum routing of single photons with \textit{N} output channels and unity routing efficiency. In addition, the protocol reduces the effect of motional dephasing increasing the photon lifetime to $>10~μ$s ($>20$ times photon processing time), enabling functional quantum devices based on Rydberg polaritons. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2504_02503 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Direction switchable single-photon emitter using a Rydberg polariton Li, Changcheng Shi, Xiao-Feng Jiao, Yuechun Yang, Jiuheng Bai, Jingxu Adams, C. Stuart Jia, Suotang Zhao, Jianming Quantum Physics All-optical redirection or routing of single photons is essential for quantum networks. Although studied in various systems both in theory and experiment, the redirection of single photons with many output ports, compatible with large-scale photonic circuits, still needs to be explored. Here, we demonstrate a direction switchable single-photon emitter using a Rydberg polariton. The Rydberg component of the stored photon is changed using a stimulated Raman transition with a specific intermediate state. By adjusting the direction of the retrieval laser, we can redirect the emitted photon into a rich variety of alternative modes. Building upon this scheme, we propose a quantum routing of single photons with \textit{N} output channels and unity routing efficiency. In addition, the protocol reduces the effect of motional dephasing increasing the photon lifetime to $>10~μ$s ($>20$ times photon processing time), enabling functional quantum devices based on Rydberg polaritons. |
| title | Direction switchable single-photon emitter using a Rydberg polariton |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2504.02503 |