Multipartite Nonlocal Quantum Correlations Resistant to Imperfections
量子物理
2016-12-30 v1
摘要
We use techniques for lower bounds on communication to derive necessary conditions in terms of detector efficiency or amount of super-luminal communication for being able to reproduce with classical local hidden-variable theories the quantum correlations occurring in EPR-type experiments in the presence of noise. We apply our method to an example involving n parties sharing a GHZ-type state on which they carry out measurements and show that for local-hidden variable theories, the amount of super-luminal classical communication c and the detector efficiency eta are constrained by eta 2^(-c/n) = O(n^(-1/6)) even for constant general error probability epsilon = O(1).
引用
@article{arxiv.quant-ph/0410139,
title = {Multipartite Nonlocal Quantum Correlations Resistant to Imperfections},
author = {H. Buhrman and P. Hoyer and S. Massar and H. Roehrig},
journal= {arXiv preprint arXiv:quant-ph/0410139},
year = {2016}
}