利用相干态的安全通信
量子物理
2007-05-23 v2
摘要
我们证明了利用相干态实现安全通信是可能的。针对M进制加密方案的最优窃听策略表明，用于比特判定的测量中错误概率的最小值可任意逼近纯猜测值P_e=1/2。该加密方案可在不降低安全级别的情况下进行光放大。这为零散光纤或自由空间信道中高速安全通信开辟了新途径。
引用
@article{arxiv.quant-ph/0210089,
title = {Secure communication using coherent states},
author = {Geraldo A. Barbosa and Eric Corndorf and Prem Kumar and Horace P. Yuen and G. Mauro D'Ariano and Matteo G. A. Paris and Paolo Perinotti},
journal= {arXiv preprint arXiv:quant-ph/0210089},
year = {2007}
}
备注
2 1/2 pages, 1 figure, Proceedings of the Sixth International Conference on Quantum Communication, Measurement and Computing Proceedings (QCMC'02), July 2002