Continuously tunable single-photon level nonlinearity with Rydberg state wave-function engineering
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arXiv
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| Auteurs principaux: | , , , , |
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| Format: | Preprint |
| Publié: |
2025
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| _version_ | 1866914179709927424 |
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| author | Xu, Biao Ye, Gen-Sheng Chang, Yue Shi, Tao Li, Lin |
| author_facet | Xu, Biao Ye, Gen-Sheng Chang, Yue Shi, Tao Li, Lin |
| contents | Extending optical nonlinearity into the extremely weak light regime is at the heart of quantum optics, since it enables the efficient generation of photonic entanglement and implementation of photonic quantum logic gate. Here, we demonstrate the capability for continuously tunable single-photon level nonlinearity, enabled by precise control of Rydberg interaction over two orders of magnitude, through the use of microwave-assisted wave-function engineering. To characterize this nonlinearity, light storage and retrieval protocol utilizing Rydberg electromagnetically induced transparency is employed, and the quantum statistics of the retrieved photons are analyzed. As a first application, we demonstrate our protocol can speed up the preparation of single photons in low-lying Rydberg states by a factor of up to ~ 40. Our work holds the potential to accelerate quantum operations and to improve the circuit depth and connectivity in Rydberg systems, representing a crucial step towards scalable quantum information processing with Rydberg atoms. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2512_04525 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Continuously tunable single-photon level nonlinearity with Rydberg state wave-function engineering Xu, Biao Ye, Gen-Sheng Chang, Yue Shi, Tao Li, Lin Atomic Physics Quantum Physics Extending optical nonlinearity into the extremely weak light regime is at the heart of quantum optics, since it enables the efficient generation of photonic entanglement and implementation of photonic quantum logic gate. Here, we demonstrate the capability for continuously tunable single-photon level nonlinearity, enabled by precise control of Rydberg interaction over two orders of magnitude, through the use of microwave-assisted wave-function engineering. To characterize this nonlinearity, light storage and retrieval protocol utilizing Rydberg electromagnetically induced transparency is employed, and the quantum statistics of the retrieved photons are analyzed. As a first application, we demonstrate our protocol can speed up the preparation of single photons in low-lying Rydberg states by a factor of up to ~ 40. Our work holds the potential to accelerate quantum operations and to improve the circuit depth and connectivity in Rydberg systems, representing a crucial step towards scalable quantum information processing with Rydberg atoms. |
| title | Continuously tunable single-photon level nonlinearity with Rydberg state wave-function engineering |
| topic | Atomic Physics Quantum Physics |
| url | https://arxiv.org/abs/2512.04525 |