| Téléchargement | - Voir la version finale : Interferometric imaging of amplitude and phase of spatial biphoton states (PDF, 2.5 Mio)
- Voir l’erratum : Interferometric imaging of amplitude and phase of spatial biphoton states (PDF, 480 Kio)
- Voir les données supplémentaires : Interferometric imaging of amplitude and phase of spatial biphoton states (PDF, 687 Kio)
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| DOI | Trouver le DOI : https://doi.org/10.1038/s41566-023-01272-3 |
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| Auteur | Rechercher : Zia, DaniloIdentifiant ORCID : https://orcid.org/0000-0002-9008-5858; Rechercher : Dehghan, Nazanin; Rechercher : D'Errico, AlessioIdentifiant ORCID : https://orcid.org/0000-0002-6964-4328; Rechercher : Sciarrino, FabioIdentifiant ORCID : https://orcid.org/0000-0003-1715-245X; Rechercher : Karimi, Ebrahim1Identifiant ORCID : https://orcid.org/0000-0002-8168-7304 |
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| Affiliation | - Conseil national de recherches Canada. Quantique et nanotechnologies
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| Format | Texte, Article |
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| Résumé | High-dimensional biphoton states are promising resources for quantum applications, ranging from high-dimensional quantum communications to quantum imaging. A pivotal task is fully characterizing these states, which is generally time-consuming and not scalable when projective measurement approaches are adopted; however, new advances in coincidence imaging technologies allow for overcoming these limitations by parallelizing multiple measurements. Here we introduce biphoton digital holography, in analogy to off-axis digital holography, where coincidence imaging of the superposition of an unknown state with a reference state is used to perform quantum state tomography. We apply this approach to single photons emitted by spontaneous parametric down-conversion in a nonlinear crystal when the pump photons possess various quantum states. The proposed reconstruction technique allows for a more efficient (three orders of magnitude faster) and reliable (an average fidelity of 87%) characterization of states in arbitrary spatial modes bases, compared with previously performed experiments. Multiphoton digital holography may pave the route toward efficient and accurate computational ghost imaging and high-dimensional quantum information processing. |
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| Date de publication | 2023-08-14 |
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| Maison d’édition | Nature Research |
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| Licence | |
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| Dans | |
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| Note | Erratum publié dans volume 17, numéro 11, page 1018, 25 october 2023. DOI: 10.1038/s41566-023-01337-3 |
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| Langue | anglais |
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| Publications évaluées par des pairs | Oui |
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| Exporter la notice | Exporter en format RIS |
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| Signaler une correction | Signaler une correction (s'ouvre dans un nouvel onglet) |
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| Identificateur de l’enregistrement | b19cfece-67dd-4b41-b586-de2ebc703163 |
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| Enregistrement créé | 2024-04-26 |
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| Enregistrement modifié | 2024-12-09 |
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