实验性全网非局部性与独立来源和严格的局部性约束
Xue-Mei Gu1,2,3, Liang Huang1,2,3, Alejandro Pozas-Kerstjens4,5
1Hefei National Research Center for Physical Sciences at the Microscale and School of Physical Sciences, University of Science and Technology of China, Hefei 230026, China.
Physical review letters
|May 27, 2023
概括
研究人员使用独立的量子源证明了完整的网络非局部性,关闭了关键的实验漏洞. 这证实了复杂网络中量子相关性的非经典性质.
科学领域:
- 量子信息科学 量子信息科学
- 量子基础的基础 量子基础的基础
- 实验量子物理学的实验.
背景情况:
- 具有多个独立源的网络非局部性表现出超出标准贝尔场景的独特现象.
- 以前的网络非局部性的证明,如纠交换,无法证明其来源的非经典性.
- 完整的网络非局部性是一个更强大的概念,需要在网络场景中证明非经典性.
研究的目的:
- 通过实验观察和认证全网非局部相关性.
- 关闭网络非局部性实验中的源独立,局部性和测量独立漏洞.
- 为了证明在网络非本地化实现中没有经典源.
主要方法:
- 使用两个独立的量子源来建立网络相关性.
- 实施测量快速随机设置生成.
- 确保相关事件之间的空间分离,以关闭局部漏洞.
主要成果:
- 全网非局部相关性的实验观测.
- 违反不完全网络非局部相关性不完全网络非局部相关性不等式,超过5个标准偏差.
- 使用的量子源的非经典性质的认证.
结论:
- 该实验成功地在严格的无漏洞条件下证明了网络的完全非局部性.
- 这项工作提供了一种可靠的方法,用于在复杂的网络设置中证明量子资源的非经典性.
- 这些发现推动了我们对多方量子网络中的量子相关性的理解.
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