Security of Quantum Key Distribution with Entangled Qutrits

Preprint

4 January 2003

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.quant-ph/0207057

Abstract

The study of quantum cryptography and quantum non-locality have traditionnally been based on two-level quantum systems (qubits). In this paper we consider a generalisation of Ekert's cryptographic protocol [Ekert] where qubits are replaced by qutrits. The security of this protocol is related to non-locality, in analogy with Ekert's protocol. In order to study its robustness against the optimal individual attacks, we derive the information gained by a potential eavesdropper applying a cloning-based attack.

Keywords

CRYPTOGRAPHIC
CRYPTOGRAPHY
EKERT'S
ENTANGLED QUTRITS
KEY DISTRIBUTION
QUANTUM KEY
QUBITS
QUTRITS
SECURITY OF THIS PROTOCOL
ROBUSTNESS AGAINST THE OPTIMAL

All Related Versions

Version 1, 2002-07-10, ArXiv
Version 2, 2003-01-04, ArXiv
Version 1, 2003-02-11, ArXiv (Unconfirmed version)
Version 2, 2003-04-14, ArXiv (Unconfirmed version)
Published version: Physical Review A, 67 (1), 012311.

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