奇环游戏中的实验量子优势
Experimental Quantum Advantage in the Odd-Cycle Game
AI总结:
该研究首次实验演示奇环游戏,通过纠缠相距约2米的两离子实现无漏洞的最优量子策略,以约26个标准差超越经典极限,并测得迄今最大的无探测漏洞非局域内容0.54(2)。
摘要:
我们报告了奇环游戏的首次实验演示。我们纠缠了两个相距约2米的离子,玩家利用它们以超过最佳经典策略所允许的概率约26个标准差的优势赢得奇环游戏。该实验实现了最优量子策略,无漏洞,并达到了量子获胜概率理论极限的97.8(3)%。我们执行了相关的贝尔测试,并测量到非局域内容为0.54(2)——这是迄今为止在有物理分离的装置中、无探测漏洞条件下观测到的最大值。
英文摘要:
We report the first experimental demonstration of the odd-cycle game. We entangle two ions separated by ~2 m and the players use them to win the odd-cycle game with a probability ~26 sigma above that allowed by the best classical strategy. The experiment implements the optimal quantum strategy, is free of loopholes, and achieves 97.8(3) % of the theoretical limit to the quantum winning probability. We perform the associated Bell test and measure a nonlocal content of 0.54(2) -- the largest value for physically separate devices, free of the detection loophole, ever observed.
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