Effective field theory corrections to General Relativity

对广义相对论的有效场论修正

• 批准号: 2436041
• 金额: --
• 依托单位: University of Cambridge
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2020
• 资助国家: 英国
• 起止时间: 2020 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2436041
• 关键词: Effective; field; theory; corrections; General

The project will use Effective Field Theory (EFT) as a framework for exploring deviations from General Relativity (GR). The only classical fields observed in Nature are the gravitational and electromagnetic fields. One can write down an EFT for these fields. This is conventional Einstein-Maxwell theory with higher derivative corrections. The leading corrections have four derivatives. Remarkably, field redefinitions can be used to write these in a form such that the equations of motion remain second order. This project will start by obtaining a well-posed formulation of these equations of motion. This will then be used to investigate how the EFT corrections affect standard results in GR, and possible observable effects in black hole spacetimes.

该项目将使用有效场论(EFT)作为探索偏离广义相对论(GR)的框架。自然界中观察到的唯一经典磁场是引力场和电磁场。人们可以写下这些字段的EFT。这是具有更高导数修正的传统爱因斯坦-麦克斯韦理论。领先的修正有四种衍生品。值得注意的是，场的重新定义可以用来写出运动方程保持二阶的形式。这个项目将从获得这些运动方程的一个适当的公式开始。这将被用来研究EFT校正如何影响GR中的标准结果，以及在黑洞时空中可能的可观察到的影响。