时间：4月24日（周五）10:30-11:30

地点：勤园20-520

报告摘要：

Finsler geometry is a natural generalization of Riemannian geometry with the latter as a special case. One of key distinction lies between Riemannian and Finsler geometry, namely, Finsler spaces with constant curvature are not equivalent to each other. Specifically, two non-equivalent Finsler spacetimes will be discussed, namely, Randers type and Bryant type, that are characterized by unique Finslerian parameters ϵ and α, respectively. It is important to test the difference by physical observations. In this talk, I will discuss our recent works on studying the orbits of Finslerian Schwarzschild black holes. First, I will introduce basic concepts of Finsler geometry and the derived Finslerian Schwarzschild black hole solution. Second, I will discuss the constraint on Finslerian Schwarzschild black hole by the observation of orbital precession of the star S2 of Sgr A*. Third, I will give necessary condition for the orbits of a Finslerian Schwarzschild black hole to be closed.

报告人简介：

李昕，毕业于中科院高能物理研究所，重庆大学“百人计划”特聘研究员。主要从事引力与宇宙学方面的研究。探索基于Finsler几何建立引力理论，并在时空对称性，引力场方程的研究上取得了一些进展，并将相关研究成果用以解释宇宙空间的大尺度各向异性。近年来主要研究Finsler黑洞的物理性质，如准正则模式和轨道运动等。已在PRD，EPJC，PLB等杂志发表SCI收录论文80余篇。