Phys. Rev. A 78, 020301(R) (2008) [4 pages]

Experimental quantum key distribution based on a Bell test

Abstract

References

Citing Articles (5)

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Alexander Ling^1,2, Matthew P. Peloso¹, Ivan Marcikic¹, Valerio Scarani^1,3, Antía Lamas-Linares^1,3, and Christian Kurtsiefer^1,3
¹Department of Physics, National University of Singapore, 117542, Singapore
²Temasek Laboratories, National University of Singapore, 123456, Singapore
³Centre for Quantum Technologies, National University of Singapore, 117543, Singapore

Received 6 June 2008; published 20 August 2008

We report on a complete free-space field implementation of a modified Ekert 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.

URL:

http://link.aps.org/doi/10.1103/PhysRevA.78.020301

DOI:

10.1103/PhysRevA.78.020301

PACS:

03.67.Dd, 03.65.Ud

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Phys. Rev. A 78, 020301(R) (2008) [4 pages]

Experimental quantum key distribution based on a Bell test