中微子质量和质量排序是现代物理学待解决的重要课题。在宇宙学领域，我们通过中微子质量对宇宙演化历史和大尺度结构的影响来限制中微子质量。在本申请项目中，我们基于已有的数值模拟工具和最近发现的中微子对宇宙大尺度结构的新效应，通过程序开发、模拟运行、数据分析，深入研究中微子的偏袒凝聚效应（differential neutrino condensation）和潮汐扭矩效应（neutrino torque）。我们计划通过系统的高精度宇宙学数值模拟深入研究不同宇宙学参数与中微子质量在这两种效应中的简并性，并优化构建可测量量和可观测量，给出未来星系巡天中这些效应可给出的中微子质量限制的误差。为通过宇宙学探测中微子质量的方法开辟新的道路。

Neutrino masses and hierarchy are important unsolved problems in modern physics. In cosmology, we use the effects of neutrino mass on cosmic evolution history and large scale structure (LSS) to constrain their mass. Based on our recently developed simulation tools and newly discovered neutrino effects on LSS, we propose to systematically study the differential neutrino condensation effect and neutrino torque effect, by developing our codes, running simulations and data analysis. In particular, in a set of high resolution cosmological LSS simulations, we plan to study the degeneracies of various cosmological parameters and neutrino mass on these two neutrino effects. This enables us to optimally construct measurements and observables and to give error estimations in constraining the neutrino mass in future galaxy surveys in these effects. It opens independent paths to the neutrino mass detection by cosmological methods.