标题： 在IceCube中搜索10.7年的大气$ν_μ$事件中的量子退相干 显示英文标题

标题： Search for Quantum Decoherence with 10.7 years of atmospheric $ν_μ$ events in IceCube

摘要： 为了发展一种一致的引力量子理论，我们必须了解普朗克尺度上时空的本质。 特别是如果它表现出量子涨落，它们可能会导致传播粒子以明显非幺正的方式演化。 中微子仅通过弱力和引力相互作用，在大距离传播时保持量子相干性。 因此，中微子振荡作为一种精确的干涉仪，用于搜索时空的普朗克尺度涨落。 冰立方中微子观测站是世界上最大的中微子望远镜，位于南极冰盖中。 我们搜索冰立方在0.5-100 TeV能量范围内探测的大气中微子数据，以检验中微子退相干。 在本次贡献中，我们展示了分析的灵敏度，与之前的冰立方结果相比有显著提高，这是由于重建技术的改进和事件样本的扩大所致。 显示英文摘要

摘要： In order to develop a consistent quantum theory of gravity, we must understand the nature of spacetime at the Planck scale. In particular if it exhibits quantum fluctuations, they may cause propagating particles to evolve in an apparently non-unitary manner. Neutrinos, which interact only via the weak force and gravity, maintain quantum coherence while propagating over large distances. Thus, neutrino oscillations serve as a precise interferometer to search for Planck-scale fluctuations of spacetime. The IceCube Neutrino Observatory is the world's largest neutrino telescope, located in the Antarctic icecap. We search the data on atmospheric neutrinos detected by IceCube in the energy range 0.5-100 TeV to test for neutrino decoherence. In this contribution, we present the sensitivity of the analysis, which shows significant improvement compared to previous IceCube results as a result of improved reconstruction and a larger sample of events.