Multichannel and high dimensional integrated photonic quantum memory
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arXiv
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| Main Authors: | , , , , , , |
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866915466051584000 |
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| author | Ou, Zhong-Wen Zhu, Tian-Xiang Liang, Peng-Jun Hu, Xiao-Min Zhou, Zong-Quan Li, Chuang-Feng Guo, Guang-Can |
| author_facet | Ou, Zhong-Wen Zhu, Tian-Xiang Liang, Peng-Jun Hu, Xiao-Min Zhou, Zong-Quan Li, Chuang-Feng Guo, Guang-Can |
| contents | Integrated photonic quantum memories are essential components for scalable quantum networks and photonic information processors. However, prior implementations have been confined to single-channel operation, limiting their capacity to manipulate multiple photonic pulses and support high-dimensional information. In this work, we introduce an 11-channel integrated quantum memory based on laser-written waveguide arrays in $^{151}$Eu$^{3+}$:Y$_2$SiO$_5$ crystals. On-chip electrode arrays enable independent control over the readout times for each channel via Stark-shift-induced atomic interference. Our device achieves random-access quantum storage of three time-bin qubits with a fidelity exceeding 99%, as well as storage of five-dimensional path-encoded quantum states with a fidelity above 96%. This multichannel integrated storage device enables versatile applications through its random access capability and lays a solid foundation for the development of high-dimensional quantum networks in integrated architectures. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2508_19605 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Multichannel and high dimensional integrated photonic quantum memory Ou, Zhong-Wen Zhu, Tian-Xiang Liang, Peng-Jun Hu, Xiao-Min Zhou, Zong-Quan Li, Chuang-Feng Guo, Guang-Can Quantum Physics Integrated photonic quantum memories are essential components for scalable quantum networks and photonic information processors. However, prior implementations have been confined to single-channel operation, limiting their capacity to manipulate multiple photonic pulses and support high-dimensional information. In this work, we introduce an 11-channel integrated quantum memory based on laser-written waveguide arrays in $^{151}$Eu$^{3+}$:Y$_2$SiO$_5$ crystals. On-chip electrode arrays enable independent control over the readout times for each channel via Stark-shift-induced atomic interference. Our device achieves random-access quantum storage of three time-bin qubits with a fidelity exceeding 99%, as well as storage of five-dimensional path-encoded quantum states with a fidelity above 96%. This multichannel integrated storage device enables versatile applications through its random access capability and lays a solid foundation for the development of high-dimensional quantum networks in integrated architectures. |
| title | Multichannel and high dimensional integrated photonic quantum memory |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2508.19605 |