各向异性时空中的引力与宇宙学

针对超新星、类星体、宇宙微波背景辐射的精确天文观测都表明存在大尺度时空各向异性。我们的宇宙可能并不各向同性，有可能存在一个所谓的魔鬼轴心。以爱因斯坦广义相对论、各向同性宇宙学原理为基础的标准宇宙学模型需要某种程度的修改。 Finsler几何中自然存在一个特殊时空指向。我们期待这个特殊的几何指向与所谓的宇宙魔鬼轴心相关。本项目研究Finsler时空的几何特征与对称性，试图构建Finsler时空的引力方程，研究各向异性时空的天体物理与宇宙学。与标准宇宙学不同，Finsler时空的宇宙学不需要引进暗物质与暗能量假设就可以加速膨胀。Finsler引力不需要引进暗物质假设就可以导致扁平化星系旋转曲线。我们将使用对超新星、宇宙微波背景辐射、类星体、特别是引力波的最新天文观测数据对Finsler引力与宇宙学模型进行广泛检验。

Recent astronomical observations on supernovae, quasars, and cosmic microwave background radiation show that there is large-scale space-time anisotropy. Our universe may not be isotropic, and there may be a so-called devil axis. The standard cosmology based on Einstein's general relativity and isotropic universe principle needs some modifications. It is noticed that there is an essential direction in Finsler geometry. We expect this particular geometric orientation to be related to the so-called cosmological devil axis. This project studies the geometric characteristics and symmetry of Finsler spacetime. We try to construct the gravitational equation of Finsler spacetime, and study the astrophysics and cosmology in anisotropic spacetime. Unlike standard cosmology, cosmology on Finsler's spacetime may be accelerated expansion without introducing dark matter and dark energy assumptions. Finsler's gravity can lead to flattened galaxy rotation curves without introducing dark matter assumptions. We will use the latest astronomical observations of supernovae, cosmic microwave background radiation, quasars, and especially gravitational waves to extensively test Finsler's gravity and cosmology.