发表机构
Università degli Studi di Salerno; INFN Gruppo Collegato di Salerno - Sezione di Napoli; Institute of Nanotechnology of the National Research Council of Italy, CNR-NANOTEC, Lecce Central Unit; Universität Ulm; Universität Wien（萨莱诺大学; 意大利国家核物理研究所萨莱诺协作组-那不勒斯分部; 意大利国家研究委员会纳米技术研究所CNR-NANOTEC莱切中央单元; 乌尔姆大学; 维也纳大学）
机构由 AI 辅助整理，请以论文原文为准。AI 中文总结
本研究将无信号时间条件扩展至三味中微子振荡，涵盖PMNS矩阵的CP破坏相位，以更完整地刻画中微子振荡中的强宏观实在性。
AI 中文摘要
宏观实在性是量子基础中的一个基本概念，捕捉了我们日常经验的基本特征。为检验宏观实在性的违反而引入的主要工具之一是Leggett-Garg不等式。这些不等式为包含在多次不同实验运行中测量的关联函数（弱宏观实在性）的特定数据集提供了必要且充分的条件。Leggett-Garg不等式已被证明在探测中微子振荡实验中宏观实在性的违反方面是有用的。然而，为了在中微子振荡的背景下获得对宏观实在性更完整的刻画，研究强宏观实在性的一组必要且充分条件——无信号时间条件和时间箭头条件——是有意义的。特别地，在这里我们将无信号时间条件的先前研究扩展到三味中微子振荡的情形，包括Pontecorvo-Maki-Nakagawa-Sakata矩阵的CP破坏相位。
英文摘要
Macrorealism is a fundamental concept in quantum foundations, capturing basic features of our everyday experience. Among the main tools introduced to test violations of macrorealism are the Leggett-Garg inequalities. These inequalities provide necessary and sufficient conditions for a certain data set including the correlators measured in a number of different experimental runs (weak version of macrorealism). Leggett-Garg inequalities have proved useful for detecting violations of macrorealism in neutrino oscillation experiments. However, it is interesting to investigate a set of necessary and sufficient conditions for strong macrorealism - no-signaling-in-time and arrow-of-time conditions - in order to obtain a more complete characterization of macrorealism in the context of neutrino oscillations. In particular, here we extend previous study of the no-signaling-in-time condition to the case of three-flavor neutrino oscillations, including the CP-violating phase of the Pontecorvo-Maki-Nakagawa-Sakata matrix.
Comments9 pages, 7 figures
Journal refEntropy 28, 1086 (2026)
