Strong majorization uncertainty relations and experimental verifications
Strong majorization uncertainty relations and experimental verifications
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DOI：
10.1038/s41534-023-00736-2
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发表时间：
2023-07
影响因子：
7.6
通讯作者：
Yuan Yuan-Yuan;Yunlong Xiao;Z. Hou;S. Fei;G. Gour;G. Xiang;Chuan‐Feng Li;G. Guo
中科院分区：
文献类型：
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作者：
Yuan Yuan-Yuan;Yunlong Xiao;Z. Hou;S. Fei;G. Gour;G. Xiang;Chuan‐Feng Li;G. Guo
尽管在量子不确定性关系的理论和实验方面取得了巨大的进展，但对最新的、最普遍的不确定性关系形式，即优化不确定性关系（MURs）的实验研究还没有实现。一个主要的问题是，以前的研究主要集中在他们的数学表达式，离开这些不同形式的物理解释未探索。为了解决这个问题，我们采用了猜测游戏的形式主义，揭示不同形式的优势不确定性关系之间的物理差异。此外，我们还利用平坦过程来收紧MUR的界。最后，我们在实验上验证了光子系统中的强MURs，以基准我们的理论结果。
In spite of enormous theoretical and experimental progress in quantum uncertainty relations, the experimental investigation of the most current, and universal formalism of uncertainty relations, namely majorization uncertainty relations (MURs), has not been implemented yet. A major problem is that previous studies of majorization uncertainty relations mainly focus on their mathematical expressions, leaving the physical interpretation of these different forms unexplored. To address this problem, we employ a guessing game formalism to reveal physical differences between diverse forms of majorization uncertainty relations. Furthermore, we tighter the bounds of MURs by using flatness processes. Finally, we experimentally verify strong MURs in the photonic system to benchmark our theoretical results.