A Note on the Subleading Soft Graviton
High Energy Physics - Theory
2019-02-06 v1
Abstract
We show that the soft part of the charge generating infinitesimal superrotations can be expressed, in harmonic gauge, in terms of metric components evaluated at the boundaries of null infinity that are subleading in a large radius expansion. We then recast the spin memory observable in terms of these boundary values.
Cite
@article{arxiv.1902.01840,
title = {A Note on the Subleading Soft Graviton},
author = {Elizabeth Himwich and Zahra Mirzaiyan and Sabrina Pasterski},
journal= {arXiv preprint arXiv:1902.01840},
year = {2019}
}
Comments
17 pages