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三元名家论坛:Weyl double copy in vacuum spacetimes
作者:     日期:2022-10-02     来源:     阅读:

讲座主题:Weyl double copy in vacuum spacetimes

专家姓名:韩善忠

工作单位:丹麦尼尔斯.玻尓研究所

讲座时间:2022年10月5日15:00-16:30

讲座地点:腾讯会议:920-185-095

主办单位:十大网投平台大全下载物理与电子信息学院

内容摘要:

The double copy is currently a highly researched prescription for connecting (non-)abelian gauge theory solutions with gravitational counterparts. It has various applications: calculations of scattering amplitudes, gravitational wave physics, correspondence between classical gravity fields and gauge fields, and so on. In this talk, I will briefly review two types of classical double copies---Kerr-Schild double copy and Weyl double copy. A new method for verifying the Weyl double copy relation for non-twisting vacuum Petrov type N and vacuum Petrov type D solutions will be presented. The case of type III solutions will also be discussed. Based on this methodology, I will extend the research to vacuum spacetimes with a cosmological constant and show that the zeroth and single copies satisfy conformally invariant field equations in conformally flat spacetime. In particular, I will demonstrate how the zeroth copy is critical in radiation solution.

主讲人介绍:

韩善忠,哥本哈根大学尼尔斯·玻尔研究所在读博士,2016年本科毕业于十大网投平台大全下载应用物理系,2019年硕士毕业于北京师范大学引力组。其中,2018年加拿大圆周理论物理研究所秋季访问研究生,2022年伦敦玛丽女王大学秋季访问研究生。