论文标题
有效的现场理论和应用：量子场理论中散射幅度的弱田间可观察物
Effective Field Theory and Applications: Weak Field Observables from Scattering Amplitudes in Quantum Field Theory
论文作者
论文摘要
在本章中，我们将根据爱因斯坦 - 希尔伯特作用的有效现场理论扩展来回顾一般相对性的现场理论处理。这种务实的务实在重力中，重力的低能量量子效应是对普遍相对论的现象学和量子扩展的杂项研究的基础。我们讨论它如何允许量子场理论成为测试爱因斯坦重力理论的理论实验室，并证明了一种有效且实用的方案的艺术现状，用于评估扰动弱田间散射幅度的经典成分，直到Minkowskian后第四个后秩序。这些结果补充了爱因斯坦重力理论中的数值预测。
In this chapter, we will review the field-theoretic treatment of General Relativity based on an effective field theory extension of the Einstein-Hilbert action. This pragmatic route to low-energy quantum effects in gravity critically underpins miscellaneous investigations of phenomenological and quantum extensions of General Relativity. We discuss how it allows quantum field theory to be a theoretical laboratory for testing Einstein's theory of gravity and demonstrate the current state of the art of an efficient and practical scheme for evaluating the classical components of perturbative weak-field scattering amplitudes until the fourth post-Minkowskian order. Such results complement numerical predictions in Einstein's theory of gravity.
