講座主題：Weyl double copy in vacuum spacetimes
專(zhuān)家姓名：韓善忠
工作單位：丹麥尼爾斯.玻尓研究所
講座時(shí)間：2022年10月5日15:00-16:30
講座地點(diǎn)：騰訊會(huì)議：920-185-095
主辦單位：煙臺(tái)大學(xué)物理與電子信息學(xué)院
內(nèi)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.
主講人介紹：
韓善忠，哥本哈根大學(xué)尼爾斯·玻爾研究所在讀博士，2016年本科畢業(yè)于煙臺(tái)大學(xué)應(yīng)用物理系，2019年碩士畢業(yè)于北京師范大學(xué)引力組。其中，2018年加拿大圓周理論物理研究所秋季訪問(wèn)研究生，2022年倫敦瑪麗女王大學(xué)秋季訪問(wèn)研究生。
