We describe how to modify the BB84 protocol for quantum cryptography in order to make it deterministic. We study both theoretical and experimental aspects of this issue, showing that the new scheme is as secure as the old one, more efficient on small-scale distances, and within the range of current technology.
@article{arxiv.0707.3913,
title = {Deterministic Rendering of BB84 for Practical Quantum Cryptography},
author = {M. Lucamarini and J. S. Shaari and M. R. B. Wahiddin},
journal= {arXiv preprint arXiv:0707.3913},
year = {2007}
}