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Robustness measures for quantifying nonlocality

delete2025-05-02
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OA
AI
K
Kyunghyun Baek
J
Junghee Ryu *
J
Jinhyoung Lee *
DOI:10.1088/1367-2630/adcd5adelete
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摘要

摘要

En 中文
我们建议使用广义鲁棒性来量化非定域性,并推导出其与贝尔不等式最大违反率的等价性,这些不等式被定义为具有非负元素的向量。我们通过将其与白噪声和标准鲁棒性度量进行比较来研究其性质。结果表明,白噪声鲁棒性在局域操作和共享随机性下不满足单调性,而其他度量则满足。为了比较标准鲁棒性和广义鲁棒性度量,我们引入了不等价性的概念,该概念表明根据单调选择的不同,顺序关系会发生逆转。从操作角度看,资源性对象的单调不等价性意味着连接它们的自由操作不存在。应用这一概念,我们发现标准鲁棒性和广义鲁棒性度量在偶数维和奇数维情况下(最高到八维)是不等价的。这是通过在最大纠缠态中随机执行的Collins-Gisin-Linden-Massar-Popescu测量设置获得的。本研究为非定域性资源理论做出了贡献,并阐明了利用适用于所有资源理论的不等价性概念来比较单调性的方法。
Keyword:
resource theory
nonlocality
local operations and shared randomness

期刊

New Journal of Physics 封面图
New Journal of Physics
IF:
2.8
论文数:
583
被引数:
3.5W

机构

K
Korea Institute of Science and Technology Information
学者数:
28
论文数: 26
被引数: 1.3K
K
Korea Institute of Science and Technology
学者数:
831
论文数: 390
被引数: 2.1W
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