Chip-to-chip photonic quantum teleportation over optical fibers of 12.3 km
Abstract Quantum teleportation is a crucial function in quantum networks. The implementation of photonic quantum teleportation could be highly simplified by quantum photonic circuits. To extend chip-to-chip teleportation distance, more effort is needed on both chip design and system implementation....
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| Main Authors: | , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Nature Publishing Group
2025-07-01
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| Series: | Light: Science & Applications |
| Online Access: | https://doi.org/10.1038/s41377-025-01920-z |
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| author | Dongning Liu Zhanping Jin Jingyuan Liu Xiaotong Zou Xiaosong Ren Hao Li Lixing You Xue Feng Fang Liu Kaiyu Cui Yidong Huang Wei Zhang |
| author_facet | Dongning Liu Zhanping Jin Jingyuan Liu Xiaotong Zou Xiaosong Ren Hao Li Lixing You Xue Feng Fang Liu Kaiyu Cui Yidong Huang Wei Zhang |
| author_sort | Dongning Liu |
| collection | DOAJ |
| description | Abstract Quantum teleportation is a crucial function in quantum networks. The implementation of photonic quantum teleportation could be highly simplified by quantum photonic circuits. To extend chip-to-chip teleportation distance, more effort is needed on both chip design and system implementation. In this work, we demonstrate a time-bin-based chip-to-chip photonic quantum teleportation over optical fibers under the scenario of a star-topology quantum network. Three quantum photonic circuits are designed and fabricated on a single chip, each serving specific functions: heralded single-photon generation at the user node, entangled photon pair generation and BSM at the relay node, and projective measurement of the teleported photons at the central node. The unbalanced Mach–Zehnder interferometers (UMZI) for time-bin encoding in these quantum photonic circuits are optimized to reduce insertion losses and suppress noise photons generated on the chip. Besides, an active feedback system is employed to suppress the impact of fiber length fluctuation between the circuits, achieving a stable quantum interference for the BSM in the relay node. As a result, a photonic quantum teleportation over optical fibers of 12.3 km is achieved based on these quantum photonic circuits, showing the potential of chip integration for the development of quantum networks. |
| format | Article |
| id | doaj-art-5d75453bb79c4580a8352c0034be7f55 |
| institution | Kabale University |
| issn | 2047-7538 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | Nature Publishing Group |
| record_format | Article |
| series | Light: Science & Applications |
| spelling | doaj-art-5d75453bb79c4580a8352c0034be7f552025-08-20T04:02:41ZengNature Publishing GroupLight: Science & Applications2047-75382025-07-0114111210.1038/s41377-025-01920-zChip-to-chip photonic quantum teleportation over optical fibers of 12.3 kmDongning Liu0Zhanping Jin1Jingyuan Liu2Xiaotong Zou3Xiaosong Ren4Hao Li5Lixing You6Xue Feng7Fang Liu8Kaiyu Cui9Yidong Huang10Wei Zhang11Frontier Science Center for Quantum Information, State Key Laboratory of Low-Dimensional Quantum Physics, Beijing National Research Center for Information Science and Technology (BNRist), Electronic Engineering Department, Tsinghua UniversityFrontier Science Center for Quantum Information, State Key Laboratory of Low-Dimensional Quantum Physics, Beijing National Research Center for Information Science and Technology (BNRist), Electronic Engineering Department, Tsinghua UniversityFrontier Science Center for Quantum Information, State Key Laboratory of Low-Dimensional Quantum Physics, Beijing National Research Center for Information Science and Technology (BNRist), Electronic Engineering Department, Tsinghua UniversityFrontier Science Center for Quantum Information, State Key Laboratory of Low-Dimensional Quantum Physics, Beijing National Research Center for Information Science and Technology (BNRist), Electronic Engineering Department, Tsinghua UniversityFrontier Science Center for Quantum Information, State Key Laboratory of Low-Dimensional Quantum Physics, Beijing National Research Center for Information Science and Technology (BNRist), Electronic Engineering Department, Tsinghua UniversityNational Key Laboratory of Materials for Integrated Circuits, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of SciencesNational Key Laboratory of Materials for Integrated Circuits, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of SciencesFrontier Science Center for Quantum Information, State Key Laboratory of Low-Dimensional Quantum Physics, Beijing National Research Center for Information Science and Technology (BNRist), Electronic Engineering Department, Tsinghua UniversityFrontier Science Center for Quantum Information, State Key Laboratory of Low-Dimensional Quantum Physics, Beijing National Research Center for Information Science and Technology (BNRist), Electronic Engineering Department, Tsinghua UniversityFrontier Science Center for Quantum Information, State Key Laboratory of Low-Dimensional Quantum Physics, Beijing National Research Center for Information Science and Technology (BNRist), Electronic Engineering Department, Tsinghua UniversityFrontier Science Center for Quantum Information, State Key Laboratory of Low-Dimensional Quantum Physics, Beijing National Research Center for Information Science and Technology (BNRist), Electronic Engineering Department, Tsinghua UniversityFrontier Science Center for Quantum Information, State Key Laboratory of Low-Dimensional Quantum Physics, Beijing National Research Center for Information Science and Technology (BNRist), Electronic Engineering Department, Tsinghua UniversityAbstract Quantum teleportation is a crucial function in quantum networks. The implementation of photonic quantum teleportation could be highly simplified by quantum photonic circuits. To extend chip-to-chip teleportation distance, more effort is needed on both chip design and system implementation. In this work, we demonstrate a time-bin-based chip-to-chip photonic quantum teleportation over optical fibers under the scenario of a star-topology quantum network. Three quantum photonic circuits are designed and fabricated on a single chip, each serving specific functions: heralded single-photon generation at the user node, entangled photon pair generation and BSM at the relay node, and projective measurement of the teleported photons at the central node. The unbalanced Mach–Zehnder interferometers (UMZI) for time-bin encoding in these quantum photonic circuits are optimized to reduce insertion losses and suppress noise photons generated on the chip. Besides, an active feedback system is employed to suppress the impact of fiber length fluctuation between the circuits, achieving a stable quantum interference for the BSM in the relay node. As a result, a photonic quantum teleportation over optical fibers of 12.3 km is achieved based on these quantum photonic circuits, showing the potential of chip integration for the development of quantum networks.https://doi.org/10.1038/s41377-025-01920-z |
| spellingShingle | Dongning Liu Zhanping Jin Jingyuan Liu Xiaotong Zou Xiaosong Ren Hao Li Lixing You Xue Feng Fang Liu Kaiyu Cui Yidong Huang Wei Zhang Chip-to-chip photonic quantum teleportation over optical fibers of 12.3 km Light: Science & Applications |
| title | Chip-to-chip photonic quantum teleportation over optical fibers of 12.3 km |
| title_full | Chip-to-chip photonic quantum teleportation over optical fibers of 12.3 km |
| title_fullStr | Chip-to-chip photonic quantum teleportation over optical fibers of 12.3 km |
| title_full_unstemmed | Chip-to-chip photonic quantum teleportation over optical fibers of 12.3 km |
| title_short | Chip-to-chip photonic quantum teleportation over optical fibers of 12.3 km |
| title_sort | chip to chip photonic quantum teleportation over optical fibers of 12 3 km |
| url | https://doi.org/10.1038/s41377-025-01920-z |
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