基于最近邻经典通信的图态泡利测量局域隐变量模型
量子物理
2007-10-22 v2
摘要
我们提出一种通信辅助的局域隐变量模型,该模型对任意图态上任意泡利算符乘积的测量给出正确结果,即对泡利乘积中各个测量之间的全局关联给出正确结果。在此模型中,通信被限制为图相邻节点之间单轮消息传递。我们证明,任何与我们的模型共享某些一般性质的模型,对于至少某些图态,无法再现所有个体测量子集之间的预期关联。我们发现,再现所有此类关联的能力依赖于通信距离和通信协议的对称性。
引用
@article{arxiv.quant-ph/0603032,
title = {Modeling Pauli measurements on graph states with nearest-neighbor classical communication},
author = {Jonathan Barrett and Carlton M. Caves and Bryan Eastin and Matthew B. Elliott and Stefano Pironio},
journal= {arXiv preprint arXiv:quant-ph/0603032},
year = {2007}
}
备注
9 pages, 2 figures. Version 2 significantly revised. Now includes a site-invariant protocol for linear chains and a proof that no limited communication protocol can correctly predict all quantum correlations for rings