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| Verfasst von: | Wagenknecht, Claudia Martina [VerfasserIn]  |
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| | Li, Che-Ming [VerfasserIn] |
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| | Reingruber, Andreas [VerfasserIn] |
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| | Bao, Xiao-Hui [VerfasserIn] |
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| | Goebel, Alexander Matthias [VerfasserIn] |
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| | Chen, Yu-Ao [VerfasserIn] |
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| | Zhang, Qiang [VerfasserIn] |
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| | Chen, Kai [VerfasserIn] |
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| | Pan, Jian-Wei [VerfasserIn] |
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| Titel: | Experimental demonstration of a heralded entanglement source |
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| Verf.angabe: | Claudia Wagenknecht, Che-Ming Li, Andreas Reingruber, Xiao-Hui Bao, Alexander Goebel, Yu-Ao Chen, Qiang Zhang, Kai Chen, and Jian-Wei Pan |
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| E-Jahr: | 2010 |
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| Jahr: | 30 May 2010 |
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| Umfang: | 4 S. |
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| Fussnoten: | Gesehen am 27.09.2023 |
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| Titel Quelle: | Enthalten in: Nature photonics |
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| Ort Quelle: | London [u.a.] : Nature Publ. Group, 2006 |
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| Jahr Quelle: | 2010 |
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| Band/Heft Quelle: | 4(2010), 8, Seite 549-552 |
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| ISSN Quelle: | 1749-4893 |
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| Abstract: | The heralded generation of entangled states is a long-standing goal in quantum information processing, because it is indispensable for a number of quantum protocols1,2. Polarization entangled photon pairs are usually generated through spontaneous parametric down-conversion3, but the emission is probabilistic. Their applications are generally accompanied by post-selection and destructive photon detection. Here, we report a source of entanglement generated in an event-ready manner by conditioned detection of auxiliary photons4. This scheme benefits from the stable and robust properties of spontaneous parametric down-conversion and requires only modest experimental efforts. It is flexible and allows the preparation efficiency to be significantly improved by using beamsplitters with different transmission ratios. We have achieved a fidelity better than 87% and a state preparation efficiency of 45% for the source. This could offer promise in essential photonics-based quantum information tasks, and particularly in enabling optical quantum computing by reducing dramatically the computational overhead5,6. |
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| DOI: | doi:10.1038/nphoton.2010.123 |
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| URL: | Bitte beachten Sie: Dies ist ein Bibliographieeintrag. Ein Volltextzugriff für Mitglieder der Universität besteht hier nur, falls für die entsprechende Zeitschrift/den entsprechenden Sammelband ein Abonnement besteht oder es sich um einen OpenAccess-Titel handelt.
Volltext: https://doi.org/10.1038/nphoton.2010.123 |
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| | Volltext: https://www.nature.com/articles/nphoton.2010.123 |
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| | DOI: https://doi.org/10.1038/nphoton.2010.123 |
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| Datenträger: | Online-Ressource |
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| Sprache: | eng |
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| Sach-SW: | Lasers |
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| | LEDs and light sources |
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| | Quantum optics |
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| K10plus-PPN: | 186034691X |
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| Verknüpfungen: | → Zeitschrift |
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Experimental demonstration of a heralded entanglement source / Wagenknecht, Claudia Martina [VerfasserIn]; 30 May 2010 (Online-Ressource)
