Gravity from Local Lorentz Violation
广义相对论与量子宇宙学
2014-11-17 v1
摘要
In general relativity, gravitational waves propagate at the speed of light, and so gravitons are massless. The masslessness can be traced to symmetry under diffeomorphisms. However, another elegant possibility exists: masslessness can instead arise from spontaneous violation of local Lorentz invariance. We construct the corresponding theory of gravity. It reproduces the Einstein-Hilbert action of general relativity at low energies and temperatures. Detectable signals occur for sensitive experiments, and potentially profound implications emerge for our theoretical understanding of gravity.
引用
@article{arxiv.gr-qc/0510124,
title = {Gravity from Local Lorentz Violation},
author = {Alan Kostelecky and Robertus Potting},
journal= {arXiv preprint arXiv:gr-qc/0510124},
year = {2014}
}
备注
6 pages, accepted in General Relativity and Gravitation