Nambu-Goldstone Modes in Gravitational Theories with Spontaneous Lorentz Breaking
High Energy Physics - Theory
2008-11-26 v2 General Relativity and Quantum Cosmology
Abstract
Spontaneous breaking of Lorentz symmetry has been suggested as a possible mechanism that might occur in the context of a fundamental Planck-scale theory, such as string theory or a quantum theory of gravity. However, if Lorentz symmetry is spontaneously broken, two sets of questions immediately arise: what is the fate of the Nambu-Goldstone modes, and can a Higgs mechanism occur? A brief summary of some recent work looking at these questions is presented here.
Keywords
Cite
@article{arxiv.hep-th/0607127,
title = {Nambu-Goldstone Modes in Gravitational Theories with Spontaneous Lorentz Breaking},
author = {R. Bluhm},
journal= {arXiv preprint arXiv:hep-th/0607127},
year = {2008}
}
Comments
6 pages. Presented at the meeting "From Quantum to Cosmos," Washington, D.C., May 2006; published in Int. J. Mod. Phys. D16:2357-2363, 2008