Quantum secure communication scheme with W state
量子物理
2015-06-26 v1
摘要
Recently, Cao et al. proposed a new quantum secure direct communication scheme using W state. In their scheme, the error rate introduced by an eavesdropper who takes intercept-resend attack, is only 8.3%. Actually, their scheme is just a quantum key distribution scheme because the communication parties first create a shared key and then encrypt the secret message using one-time pad. We then present a quantum secure communication scheme using three-qubit W state. In our scheme, the error rate is raised to 25% and it is not necessary for the present scheme to use alternative measurement or Bell basis measurement. We also show our scheme is unconditionally secure.
引用
@article{arxiv.quant-ph/0603144,
title = {Quantum secure communication scheme with W state},
author = {Jian Wang and Quan Zhang and Chao-jing Tang},
journal= {arXiv preprint arXiv:quant-ph/0603144},
year = {2015}
}
备注
Comments are welcome