Phys. Rev. A 67, 044303 (2003) [4 pages]

Modified Wigner inequality for secure quantum-key distribution

Abstract

References

Citing Articles (2)

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S. Castelletto^*
Optical Technology Division, National Institute of Standards and Technology, Gaithersburg, Maryland 20899-8441

I. P. Degiovanni^† and M. L. Rastello
Istituto Elettrotecnico Nazionale, G. Ferraris, Strada delle Cacce 91-10135, Torino, Italy

Received 16 October 2002; published 30 April 2003

In this paper, we discuss the insecurity with present implementations of the Ekert protocol for quantum-key distribution based on the Wigner inequality. We propose a modified version of this inequality which guarantees safe quantum-key distribution.

URL:

http://link.aps.org/doi/10.1103/PhysRevA.67.044303

DOI:

10.1103/PhysRevA.67.044303

PACS:

03.67.Dd, 03.65.Ud

^*Permanent address: Istituto Elettrotecnico Nazionale, G. Ferraris, Strada delle Cacce 91, 10135 Torino, Italy. Electronic address: castelle@ien.it

^†Electronic address: degio@ien.it

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Phys. Rev. A 67, 044303 (2003) [4 pages]

Modified Wigner inequality for secure quantum-key distribution