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arXiv 1910.04478quant-ph
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简单2人XOR对策的量子策略

Quantum strategies for simple 2-player XOR games

Ricardo Faleiro

摘要:

非本地游戏场景提供了一个强大的框架来研究经典和量子相关性的局限性,通过研究这些相关性在合作游戏中提供的获胜概率的上限,其中玩家之间的通信是禁止的。基于Cleve等人的开创性工作中提出的结果。[1],提出了一种简单的构造来计算简单2人XOR游戏的Tsirelson界限。该构造被明确应用于一些例子,包括Brukner等人的纠缠辅助空间定向(EAOS)游戏。[2],首次证明他们提出的量子策略实际上是最优的,因为它达到了Tsirelson界限。

英文摘要:

The non-local game scenario provides a powerful framework to study the limitations of classical and quantum correlations, by studying the upper bounds of the winning probabilities those correlations offer in cooperation games where communication between players is prohibited. Building upon results presented in the seminal work of Cleve et al. [1], a straightforward construction to compute the Tsirelson bounds for simple 2-player XOR games is presented. The construction is applied explicitly to some examples, including the Entanglement Assisted Orientation in Space (EAOS) game of Brukner et al. [2], proving for the first time that their proposed quantum strategy is in fact the optimal, as it reaches the Tsirelson bound.

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