Spontaneous Lorentz Violation and the Long-Range Gravitational Preferred-Frame Effect
Abstract
Lorentz-violating operators involving Standard Model fields are tightly constrained by experimental data. However, bounds are more model-independent for Lorentz violation appearing in purely gravitational couplings. The spontaneous breaking of Lorentz invariance by the vacuum expectation value of a vector field selects a universal rest frame. This affects the propagation of the graviton, leading to a modification of Newton's law of gravity. We compute the size of the long-range preferred-frame effect in terms of the coefficients of the two-derivative operators in the low-energy effective theory that involves only the graviton and the Goldstone bosons.
Cite
@article{arxiv.hep-th/0501223,
title = {Spontaneous Lorentz Violation and the Long-Range Gravitational Preferred-Frame Effect},
author = {Michael L. Graesser and Alejandro Jenkins and Mark B. Wise},
journal= {arXiv preprint arXiv:hep-th/0501223},
year = {2010}
}
Comments
11 pages, no figures, revtex4. v4: Replaced to match version to appear in Phys. Lett. B (minor corrections of form)