Experimental quantum key distribution based on a Bell test

Details Experimental quantum key distribution based on a Bell test Experimental quantum key distribution based on a Bell test

2008-05-23

arxiv.org/abs/0805.3629v2

Physical Review A 78, 020301 (R) (2008)

Physics

Quantum Physics

5 pages ReVTeX, 3 figures; version v2 with updated references and minor corrections, author spelling fixed

Scientific paper

10.1103/PhysRevA.78.020301

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.

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