论文标题
有效的现场理论方法，用于合并二进制系统的一般相对论和FEYNMAN图
Effective Field Theory Approach to General Relativity and Feynman Diagrams for Coalescing Binary Systems
论文作者
论文摘要
在这篇论文中，我们详细介绍了对一般相对论（GR）中二元合并系统的有效田间理论（EFT）方法的两个不同方面。首先，我们考虑使用Feynman和Schwinger-keldysh形式主义，将遥远区域的遗传作用问题（PN）扰动方案中的遗传作用问题计算到最高5PN秩序的遗传图，将我们的结果与文献中出现的结果进行了比较。然后，我们专注于胶后（PM）的扰动方案，并在GRE的EFT中计算出无质量标量场的弯曲角度，在尺寸正则化中最多可循环顺序。我们的分析表明，在先前的研究中未考虑的相关术语的存在，这可能会改变物理可观察物的预测。
In this thesis we elaborate on two different aspects of the Effective Field Theory (EFT) approach to a Binary Coalescing system in General Relativity (GR). First, we consider the issue of hereditary effects in the Post-Newtonian (PN) perturbative scheme, and we compute hereditary diagrams in the far zone region up to 5PN order, using both Feynman and Schwinger-Keldysh formalism, comparing our results with those appearing in literature. Then, we focus on the Post-Minkowskian (PM) perturbative scheme, and we compute the bending angle of a massless scalar field under the influence of a massive scalar in the EFT of GR, up to one loop order in dimensional regularisation. Our analysis points to the existence of relevant terms that were not accounted for in previous study, which may modify the predictions for physical observables.
