Smooth metrics can hide thin shells
General Relativity and Quantum Cosmology
2023-09-07 v2
Abstract
In this note, I consider a class of metric tensors with smooth components that naively appear to describe dynamical wormholes with vanishing spacetime curvature. I point out that the smoothness of the metric tensor components is deceptive, and that in general relativity, such metrics must be sourced by exotic thin shells.
Cite
@article{arxiv.2308.11885,
title = {Smooth metrics can hide thin shells},
author = {Justin C. Feng},
journal= {arXiv preprint arXiv:2308.11885},
year = {2023}
}
Comments
2 pages, fixed typo