From pp-Waves to Galilean Spacetimes
High Energy Physics - Theory
2023-06-06 v3 General Relativity and Quantum Cosmology
Differential Geometry
Abstract
We exhibit all spatially isotropic homogeneous Galilean spacetimes of dimension , including the novel torsional ones, as null reductions of homogeneous pp-wave spacetimes. We also show that the pp-waves are sourced by pure radiation fields and analyse their global properties.
Keywords
Cite
@article{arxiv.2208.07627,
title = {From pp-Waves to Galilean Spacetimes},
author = {José Figueroa-O'Farrill and Ross Grassie and Stefan Prohazka},
journal= {arXiv preprint arXiv:2208.07627},
year = {2023}
}