Programmable time-frequency mode-sorting of single photons with a multi-output quantum pulse gate
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arXiv
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| Main Authors: | , , , |
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| Format: | Preprint |
| Published: |
2024
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| _version_ | 1866929698976563200 |
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| author | Serino, Laura Eigner, Christof Brecht, Benjamin Silberhorn, Christine |
| author_facet | Serino, Laura Eigner, Christof Brecht, Benjamin Silberhorn, Christine |
| contents | We demonstrate a high-dimensional mode-sorter for single photons based on a multi-output quantum pulse gate, which we can program to switch between different temporal-mode encodings including pulse modes, frequency bins, time bins, and their superpositions. This device can facilitate practical realizations of quantum information applications such as high-dimensional quantum key distribution, and thus enables secure communication with enhanced information capacity. We characterize the mode-sorter through a detector tomography in 3 and 5 dimensions and find a fidelity up to $0.958\pm 0.030$ at the single-photon level. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2410_03606 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Programmable time-frequency mode-sorting of single photons with a multi-output quantum pulse gate Serino, Laura Eigner, Christof Brecht, Benjamin Silberhorn, Christine Quantum Physics We demonstrate a high-dimensional mode-sorter for single photons based on a multi-output quantum pulse gate, which we can program to switch between different temporal-mode encodings including pulse modes, frequency bins, time bins, and their superpositions. This device can facilitate practical realizations of quantum information applications such as high-dimensional quantum key distribution, and thus enables secure communication with enhanced information capacity. We characterize the mode-sorter through a detector tomography in 3 and 5 dimensions and find a fidelity up to $0.958\pm 0.030$ at the single-photon level. |
| title | Programmable time-frequency mode-sorting of single photons with a multi-output quantum pulse gate |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2410.03606 |