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arXiv 2609.38083quant-phmath.OA

交换算子框架下精确纠缠盗用协议的自我测试

A commuting operator self-test for exact entanglement embezzlement

  • University of Calgary(卡尔加里大学)
  • Ruhr University Bochum(波鸿鲁尔大学)

机构由 AI 辅助整理,请以论文原文为准。

Connor Paddock, Simon Schmidt

AI总结:

本研究证明基于纠缠盗用的变体非局部博弈的最优交换算子关联是交换算子自我测试,首次实现精确纠缠盗用协议的关联自我测试,并展示其无法用张量积模型实现,证明方法基于 Harris 的抽象态刻画。

AI中文摘要:

我们证明,基于纠缠盗用协议的 Coladangelo 双人广义非局部博弈的一个变体,其最优交换算子关联构成一个交换算子自我测试。我们的结果首次在交换算子框架下给出了精确纠缠盗用协议的关联自我测试。由于唯一的最优关联要求精确的纠缠盗用,该关联无法通过量子张量积模型实现,即使允许局部空间为无限维。因此,我们的结果提供了一个交换算子自我测试的例子,其中双方共享的希尔伯特空间不能分解为与局部测量算子兼容的局部空间的张量积。我们的主要证明技术依赖于 Harris 关于涉及 Cuntz 代数的精确纠缠盗用的唯一抽象态刻画。

英文摘要:

We show that the optimal commuting operator correlation for a variant of Coladangelo's two-player generalized nonlocal game, based on the embezzlement of entanglement, is a commuting operator self-test. Our result gives the first correlation self-test for an exact entanglement embezzlement protocol in the commuting operator framework. Because the unique optimal correlation necessitates the exact embezzlement of entanglement, the correlation is unrealizable using quantum tensor-product models, even if the local spaces are allowed to be infinite dimensional. As such, our result provides an example of a commuting operator self-test where the Hilbert space shared by the two parties cannot be factored into a tensor-product of local spaces that is compatible with the local measurement operators. Our main proof technique relies on Harris' unique abstract state characterization of exact embezzlement of entanglement involving Cuntz algebras.

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