报告摘要：Wave effects are a crucial aspect of gravitational waves. When the wavelength of GWs is comparable to or greater than the Schwarzschild radius of an object, the propagation of gravitational waves no longer follows geometrical optics, and coherence and interference can occur. Despite their significance, studying these wave effects can be challenging due to their complexity.
In this talk, I will discuss numerical techniques for simulating these effects in the gravitational field of a Schwarzschild black hole. I will talk about the back-scattering effect of the interaction between GWs and the background curvature. Finally, I will discuss the potential detectability of these wave effects in aLIGO.
主讲人简介：He Jianhua is a professor at the School of Astronomy and Space Science, Nanjing University. In 2006, he received his Bachelor's degree in Physics from Shanghai Jiao Tong University. In 2011, he got his PhD in Theoretical Physics from Fudan University. From 2011 to 2015, he conducted postdoctoral research at the INAF in Italy. From 2015 to 2018, he was awarded the International Junior Research Fellowship by Durham University in the UK and worked at the Institute for Computational Cosmology (ICC, Durham) on research projects. In December 2018, he joined the School of Astronomy and Space Science of Nanjing University. His research areas include modified gravity, cosmic microwave background radiation, numerical simulations of large-scale structure formation in the universe, and observations of large-scale galaxy surveys. Currently, he is primarily engaged in research related to gravitational waves, numerical relativity, and experimental detection of dark energy. So far, he has published one paper in Nature Physics, one in Nature Astronomy (cover of the December 2018 issue), and three in Phys. Rev. Lett. as the first/corresponding author.
