报告题目：基于拉氏量分析的处理引力微扰问题与洛伦兹破缺效应的新方法

报  告 人：张超 讲师，中国石油大学（北京）

研究方向：引力波、引力理论、黑洞物理

报告时间：2025年3月22日（星期六）上午10:00

报告地点：量子楼410报告厅

报告摘要：

Since the first direct detection to the gravitational wave (GW), i.e., the event GW150914, it has emerged as a blockbuster during the past decade within the realm of theoretical physics. Specially, it provides us with an unprecedented opportunity in testing theories of gravity the beyond the scope of general relativity (GR), especially in the strong-field regime. One common way for extracting physical information and observables from a theory’s Lagrangian is to execute the gravitational perturbations on it. Unfortunately, due to the sophisticated structure of, e.g., the Lorentz-violating (LV) theory, which predicts multiple horizons that beyond GR and plays an important role in constructing the quantum gravity, many attempts in this area are meeting a great challenge under the traditional treatment. Here we will introduce a novel treatment for this sort of problems, which can be expediently referred as Lagrangian analysis. It can not only reveal the inherent stability of the theory but also lead us to the effective derivation process of the corresponding GWs. Hopefully, several research sub-branches, including the study of LV gravity and the combination with GW observations, will benefit from the development of this novel treatment to gravitational perturbations. More details will be given in the talk.

报告人简介：

博士毕业于美国Baylor University，后赴浙江工业大学理学院与日本东京理科大学理学部从事博士后研究，现于中国石油大学（北京）理学院担任讲师。主要研究兴趣在于引力波、引力理论、黑洞物理等，先后在PRD、JCAP、EPJC、CPC等国内外相关领域主流期刊上发表论文十余篇，并主持了一项国自然青年基金项目、校级拔尖人才项目、参与了一项国自然面上项目。近期研究聚焦了洛伦兹破缺引力理论、极端质量比天体系统、引力的试验检验、宇宙学微扰等问题。