Physics – Quantum Physics
Scientific paper
2010-05-07
International Journal of Quantum Information Vol.9, No.5 (2011) 1209-1222
Physics
Quantum Physics
8 pages, 3 figures
Scientific paper
We introduce a new control strategy on a two-way deterministic cryptographic scheme, which relies on a suitable unitary transformation rather than quantum measurement. The study is developed for d-ary alphabets and the particular choice of the transformation works when d is an odd prime power. It leads to an improvement of the protocol security, which we prove to increase with the alphabet order d.
Eusebi Anita
Mancini Stefano
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