Automated discovery of high-dimensional multipartite entanglement with photons that never interacted
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arXiv
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| Main Authors: | , , |
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866918272725680128 |
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| author | Arlt, Sören Krenn, Mario Gu, Xuemei |
| author_facet | Arlt, Sören Krenn, Mario Gu, Xuemei |
| contents | Quantum entanglement across spatially separated network nodes is conventionally established through the distribution of photons from a common source or via entanglement swapping that relies on Bell-state measurements and pre-shared entanglement. Path identity, where the emission origins of photons from different sources are made indistinguishable, offers an alternative route. We show that this mechanism enables complex multipartite, high-dimensional, and even logical entanglement between remote nodes whose photons never interacted. Our schemes require neither direct photon interaction, pre-shared entanglement, nor Bell-state measurements, highlighting a distinct resource for distributed quantum communication and computation. All of the solutions were discovered automatically using highly efficient computational design tools, indicating the potential for scientific inspiration from computational algorithms. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2510_10707 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Automated discovery of high-dimensional multipartite entanglement with photons that never interacted Arlt, Sören Krenn, Mario Gu, Xuemei Quantum Physics Quantum entanglement across spatially separated network nodes is conventionally established through the distribution of photons from a common source or via entanglement swapping that relies on Bell-state measurements and pre-shared entanglement. Path identity, where the emission origins of photons from different sources are made indistinguishable, offers an alternative route. We show that this mechanism enables complex multipartite, high-dimensional, and even logical entanglement between remote nodes whose photons never interacted. Our schemes require neither direct photon interaction, pre-shared entanglement, nor Bell-state measurements, highlighting a distinct resource for distributed quantum communication and computation. All of the solutions were discovered automatically using highly efficient computational design tools, indicating the potential for scientific inspiration from computational algorithms. |
| title | Automated discovery of high-dimensional multipartite entanglement with photons that never interacted |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2510.10707 |