In this paper, we present a scheme for quantum key distribution, in which different-frequency photons are used to encode the key. Thses different-frequency photons are produced by an acoustic-optical modulator and two kinds of narrow filters . This scheme may be implementable in practice.
@article{arxiv.quant-ph/0006038,
title = {Quantum key distribution using different-frequency photons},
author = {Bao-Sen Shi and Yun-Kun Jiang and Guang-Can Guo},
journal= {arXiv preprint arXiv:quant-ph/0006038},
year = {2009}
}
Comments
3 pages, to appear in Appl.Phys. B 70, 415-417 (2000)