Non-geodesic timelike observers and the ultralocal limit
General Relativity and Quantum Cosmology
2025-02-04 v2
Abstract
The ultralocal limit along timelike geodesics, in which any geometry reduces to Bianchi I, does not extend to non-geodesic timelike observers. Exceptions are discussed, including particles with variable mass, test particles in Einstein frame scalar-tensor gravity, and self-interacting dark matter.
Keywords
Cite
@article{arxiv.2408.00871,
title = {Non-geodesic timelike observers and the ultralocal limit},
author = {Reza Saadati and Luca Valsan and Valerio Faraoni},
journal= {arXiv preprint arXiv:2408.00871},
year = {2025}
}