【报告题目】：Constraints on Lorentz and parity violations with gravitational waves
【报告人】：朱涛教授，浙江工业大学
【报告时间】: 3月25日，9:30-10:15
【报告地点】：29-414
【报告摘要】：Gravitational wave (GW) observations offer a powerful tool for testing the fundamental Lorentz and parity symmetries of gravity. Any violation of these symmetries could manifest as deviations in GW propagation. In this talk, I will explore how current and future GW detections can be used to constrain Lorentz- and parity-violating effects in gravity. I will begin by introducing a systematic parametrization framework to describe potential deviations in GW propagation from general relativity in a cosmological background. Using this framework, we can construct modified GW waveforms, incorporating the effects of Lorentz and parity violations as predicted by various alternative gravity theories. Finally, I will present the latest results from our analysis of these modified waveforms using current GW data and discuss the prospects for placing even stronger constraints with future GW detections.
【报告人简介】：Tao Zhu is a professor at the physics department at Zhejiang University of Technology. He got a ph.D from the Institute of Theoretical Physics at Lanzhou University in 2010. He has held positions as assistant research professor at the CASPER, Baylor University, USA (2013-2017), lecturer at Zhejiang University of Technology (July 2010 - August 2012), Associate Professor (September 2012 - December 2018), and professor (January 2019 - present). His current research interests mainly focus on gravitational wave physics and black hole physics. He has published over 120 papers with about 3500 citations in total. He has been selected as the 2019 Outstanding Referee of CQG, the 2020 Outstanding Referee of Chinese Physics C, and the IOP Trusted Reviewer in 2023. He has led several research projects, including the National Key R&D Program on Gravitational Wave Detection by the Ministry of Science and Technology, the Zhejiang Provincial Natural Science Foundation for Distinguished Young Scholars, and the National Natural Science Foundation of China. He also won the third prize of the Zhejiang Provincial Natural Science Award in 2023.
