多方非局部性和设备独立效应证人的层次结构
Peter Bierhorst1, Jitendra Prakash1
1Mathematics Department, University of New Orleans, New Orleans, Louisiana 70148, USA.
Physical review letters
|July 7, 2023
概括
我们在量子网络中引入了真正的多方非本地 (GMNL) 行为层次结构. 一个关键的发现显示了一种行为,证明了最一般的GMNL,但可以通过纠的双方测量来模拟.
科学领域:
- 量子信息科学 量子信息科学
- 量子网络是一个量子网络.
- 量子力学的基础 量子力学的基础
背景情况:
- 多方非本地行为是由它们无法通过双方非本地资源来建模而定义的.
- 最近对真正多方非本地 (GMNL) 行为的定义因潜在的双方网络中纠的测量或超量子资源的允许而有所不同.
- 了解GMNL对于量子网络效应的设备独立认证至关重要.
研究的目的:
- 在三方量子网络中对GMNL进行新候选定义的层次分类.
- 探索GMNL定义和网络效应的设备独立证人的关系.
- 在不同的GMNL框架内调查特定多方行为模拟能力.
主要方法:
- 分析三方,两个测量设置,两个结果场景,以确定GMNL行为.
- 使用单双网络的模拟能力的比较,有或没有纠的测量或超量子资源.
- 在GMNL定义的既定层次结构内对行为进行分类.
主要成果:
- 确定了一种特定的 (3,2,2) 行为,证明了GMNL的最一般形式,因为它不能在没有纠的双方测量或超量子资源的情况下模拟.
- 这种相同的 (3,2,2) 行为可以使用与纠测量的单双量子状态来模拟,这表明了与较少设置纠测量的设备独立认证的途径.
- 令人惊的是,所有研究的行为,包括 (3,2,2) 一个,可以在GMNL等级的更高层次内模拟,允许超量子双元资源,同时仍然禁止纠测量.
结论:
- 该研究建立了GMNL定义的层次结构,并将其与设备独立的证人联系起来.
- 一个关键的发现挑战了理论独立的理解纠测量与双边非局部性不同,因为它们可以在某些GMNL定义下模拟.
- 结果突出了多方非局部性,双方资源和量子网络中纠的测量之间的复杂相互作用.
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