Robustness of a quantum key distribution with two and three mutually unbiased bases

Journal Article · Thu Sep 15 04:00:00 EDT 2005 · Physical Review. A

DOI:https://doi.org/10.1103/PhysRevA.72.032340· OSTI ID:20718526

Caruso, F ^[1]; Bechmann-Pasquinucci, H ^[2]; Macchiavello, C ^[2]

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1. Scuola Superiore di Catania, via S. Paolo 73, I-95123 Catania (Italy)
2. Dipartimento di Fisica 'A. Volta', Unita di Pavia, Via Bassi 6, I-27100 Pavia (Italy)

We study the robustness of various protocols for quantum key distributions. We first consider the case of qutrits and study quantum protocols that employ two and three mutually unbiased bases. We then derive the optimal eavesdropping strategy for two mutually unbiased bases in dimension 4 and generalize the result to a quantum key distribution protocol that uses two mutually unbiased bases in arbitrary finite dimensions.

• OSTI ID: 20718526
• Journal Information: Physical Review. A, Journal Name: Physical Review. A Journal Issue: 3 Vol. 72; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
DATA TRANSMISSION
DISTRIBUTION
INFORMATION THEORY
QUANTUM CRYPTOGRAPHY
QUANTUM MECHANICS
SECRECY PROTECTION