Quantum key distribution for d-level systems with generalized Bell states
量子物理
2009-11-07 v3
摘要
Using the generalized Bell states and controlled not gates, we introduce an enatanglement-based quantum key distribution (QKD) of d-level states (qudits). In case of eavesdropping, Eve's information gain is zero and a quantum error rate of (d-1)/d is introduced in Bob's received qudits, so that for large d, comparison of only a tiny fraction of received qudits with the sent ones can detect the presence of Eve.
引用
@article{arxiv.quant-ph/0111091,
title = {Quantum key distribution for d-level systems with generalized Bell states},
author = {Vahid Karimipour and Saber Bagherinezhad and Alireza Bahraminasab},
journal= {arXiv preprint arXiv:quant-ph/0111091},
year = {2009}
}
备注
8 pages, 3 figures, REVTEX, references added, extensive revision, to appear in Phys. Rev. A