arXiv subjects

Anita Eusebi

Publications and source records attributed to Anita Eusebi.

2 recordsLinked to original sources

arXiv2010

Improving the Control Strategy in two-way deterministic cryptographic protocols

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.

quant-ph↗

arXiv2009

Deterministic Quantum Distribution of a d-ary key

We present an extension to a d-ary alphabet of a recently proposed deterministic quantum key distribution protocol. It relies on the use of mutually unbiased bases in prime power dimension d, for which we provide an explicit expression. Then, by considering a powerful individual attack, we show that the security of the protocol is maximal for d=3.

quant-ph↗