Einstein-aether gravity: a status report
General Relativity and Quantum Cosmology
2008-11-26 v2 Astrophysics
High Energy Physics - Phenomenology
High Energy Physics - Theory
Abstract
This paper reviews the theory, phenomenology, and observational constraints on the coupling parameters of Einstein-aether gravity, i.e. General Relativity coupled to a dynamical unit timelike vector field. A discussion of open questions concerning both phenomenology and fundamental issues is included.
Cite
@article{arxiv.0801.1547,
title = {Einstein-aether gravity: a status report},
author = {Ted Jacobson},
journal= {arXiv preprint arXiv:0801.1547},
year = {2008}
}
Comments
18 pages, for the proceedings of the conference "From Quantum to Emergent Gravity: Theory and Phenomenology", June 11-15 2007, SISSA; Trieste, Italy; v.2: added brief comments on observability of wave speeds and polarizations, and how neutron star and black hole "sensitivities" might be computed