Experimental quantum key distribution based on a Bell test

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We report on a complete free-space field implementation of a modified Ekert91 protocol for quantum key distribution using entangled photon pairs. For each photon pair we perform a random choice between key generation and a Bell inequality. The amount of violation is used to determine the possible knowledge of an eavesdropper to ensure security of the distributed final key.
5 pages ReVTeX, 3 figures; version v2 with updated references and minor corrections, author spelling fixed

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Quantum Physics

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http://salesiana.dossiersoluciones.com/handle/123456789/168552

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/0805.3629
 http://arxiv.org/abs/0805.3629
 Physical Review A 78, 020301 (R) (2008)
 doi:10.1103/PhysRevA.78.020301

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arXiv