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Witnessing single-photon entanglement with local homodyne measurements : analytical bounds and robustness to losses

Ho, Melvyn and Morin, Olivier and Bancal, Jean-Daniel and Gisin, Nicolas and Sangouard, Nicolas and Laurat, Julien. (2014) Witnessing single-photon entanglement with local homodyne measurements : analytical bounds and robustness to losses. New journal of physics, Vol. 16 , 103035.

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Official URL: http://edoc.unibas.ch/dok/A6348405

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Abstract

Single-photon entanglement is one of the primary resources for quantum networks, including quantum repeater architectures. Such entanglement can be revealed with only local homodyne measurements through the entanglement witness presented in Morin et al (2013 Phys. Rev. Lett. 110 130401). Here, we provide an extended analysis of this witness by introducing analytical bounds and by reporting measurements confirming its great robustness with regard to losses. This study highlights the potential of optical hybrid methods, where discrete entanglement is characterized through continuous-variable measurements.
Faculties and Departments:05 Faculty of Science > Departement Physik > Physik > Quantum Physics (Sangouard)
UniBasel Contributors:Sangouard, Nicolas
Item Type:Article, refereed
Article Subtype:Research Article
Bibsysno:Link to catalogue
Publisher:IOP Publishing
ISSN:1367-2630
Note:Publication type according to Uni Basel Research Database: Journal article
Identification Number:
Last Modified:10 Apr 2015 09:12
Deposited On:10 Apr 2015 09:12

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