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Abstract

We review recent progress and future prospects for harnessing powerful tools
from theoretical high-energy physics, such as scattering amplitudes and
effective field theory, to develop a precise and systematically improvable
framework for calculating gravitational-wave signals from binary systems
composed of black holes and/or neutron stars. This effort aims to provide
state-of-the-art predictions that will enable high-precision measurements at
future gravitational-wave detectors. In turn, applying the tools of quantum
field theory in this new arena will uncover theoretical structures that can
transform our understanding of basic phenomena and lead to new tools that will
further the cycle of innovation. While still in a nascent stage, this research
direction has already derived new analytic results in general relativity, and
promises to advance the development of highly accurate waveform models for ever
more sensitive detectors.