Universal quantum frequency comb measurements by spectral mode-matching
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arXiv
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| Hauptverfasser: | , , , , |
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| Format: | Preprint |
| Veröffentlicht: |
2024
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| _version_ | 1866914380288884736 |
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| author | Dioum, Bakhao D'Auria, Virginia Zavatta, Alessandro Pfister, Olivier Patera, Giuseppe |
| author_facet | Dioum, Bakhao D'Auria, Virginia Zavatta, Alessandro Pfister, Olivier Patera, Giuseppe |
| contents | The frequency comb of a multimode interferometer offers exceptional scalability potential for field-encoded quantum information. However, the staple field detection method, homodyne detection, cannot access quantum information in the whole comb because some spectral quadratures (and their asymmetries with respect to the LO) are out of reach. We present here the first general approach to make arbitrary, one-shot measurements of a multimode quantum optical source, something that is required for photonic quantum computing and is not possible when using homodyne detection with a pulse-shaped LO. This approach uses spectral mode-matching, which can be understood as interferometry with a memory effect. We derive a complete formalism and propose an implementation by microcavity arrays. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2405_18454 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Universal quantum frequency comb measurements by spectral mode-matching Dioum, Bakhao D'Auria, Virginia Zavatta, Alessandro Pfister, Olivier Patera, Giuseppe Quantum Physics The frequency comb of a multimode interferometer offers exceptional scalability potential for field-encoded quantum information. However, the staple field detection method, homodyne detection, cannot access quantum information in the whole comb because some spectral quadratures (and their asymmetries with respect to the LO) are out of reach. We present here the first general approach to make arbitrary, one-shot measurements of a multimode quantum optical source, something that is required for photonic quantum computing and is not possible when using homodyne detection with a pulse-shaped LO. This approach uses spectral mode-matching, which can be understood as interferometry with a memory effect. We derive a complete formalism and propose an implementation by microcavity arrays. |
| title | Universal quantum frequency comb measurements by spectral mode-matching |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2405.18454 |