Robustness of a quantum key distribution with two and three mutually unbiased bases
Abstract
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.
- Publication:
-
Physical Review A
- Pub Date:
- September 2005
- DOI:
- 10.1103/PhysRevA.72.032340
- arXiv:
- arXiv:quant-ph/0505146
- Bibcode:
- 2005PhRvA..72c2340C
- Keywords:
-
- 03.67.Dd;
- 03.67.Hk;
- Quantum cryptography;
- Quantum communication;
- Quantum Physics
- E-Print:
- 11 pages, 2 figures