Gravitational memory effects and higher derivative actions
General Relativity and Quantum Cosmology
2023-04-26 v3 High Energy Physics - Theory
Abstract
We show that charges associated with the internal Lorentz symmetries of general relativity, with higher derivative boundary terms included in the action, capture observable gravitational wave effects. In particular, the Gauss-Bonnet charge measures the precession rate of a freely-falling gyroscope, while the Pontryagin charge encodes the relative radial acceleration of freely-falling test masses. This relation highlights the importance of the tetrad formalism and the physical significance of asymptotic internal Lorentz symmetries.
Cite
@article{arxiv.2206.12339,
title = {Gravitational memory effects and higher derivative actions},
author = {Mahdi Godazgar and George Macaulay and Ali Seraj},
journal= {arXiv preprint arXiv:2206.12339},
year = {2023}
}
Comments
15 pages