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A Modified Wigner's Inequality for Secure Quantum Key Distribution



Stefania Castelletto, Ivo P. Degiovanni, M L. Rastello


In this letter 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.
Physical Review Letters


entanglement and quantum nonlocality, quantum cryptography, quantum information


Castelletto, S. , Degiovanni, I. and Rastello, M. (2008), A Modified Wigner's Inequality for Secure Quantum Key Distribution, Physical Review Letters (Accessed December 7, 2023)
Created October 16, 2008