Double entanglement and quantum cryptography
量子物理
2009-11-07 v1
摘要
We propose a quantum transmission based on bi-photons which are doubly-entangled both in polarisation and phase. This scheme finds a natural application in quantum cryptography, where we show that an eventual eavesdropper is bound to introduce a larger error on the quantum communication than for a single entangled bi-photon communication, when steeling the same information.
引用
@article{arxiv.quant-ph/0107118,
title = {Double entanglement and quantum cryptography},
author = {M. Genovese and C. Novero},
journal= {arXiv preprint arXiv:quant-ph/0107118},
year = {2009}
}