Lorentz violation and red shift of gravitational waves in brane-worlds
General Relativity and Quantum Cosmology
2015-06-23 v1
Abstract
In this paper we study the speed of gravitational waves in a brane world scenario and show that if the extra dimension is space-like, the speed of the propagation of such waves is greater in the bulk than that on the brane. Therefore, the 4D Lorentz invariance is broken in the gravitational sector. A comparison is also made between the red shift of such waves and those of the electromagnetic waves on the brane. Such a comparison is essential for extracting the signature of the extra dimension and thus clarifying the question of maximal velocity of gravitational waves in the bulk.
Keywords
Cite
@article{arxiv.1411.1986,
title = {Lorentz violation and red shift of gravitational waves in brane-worlds},
author = {Fatemeh Ahmadi and Jafar Khodagholizadeh and H. R. Sepangi},
journal= {arXiv preprint arXiv:1411.1986},
year = {2015}
}
Comments
12 pages. arXiv admin note: substantial text overlap with arXiv:gr-qc/0702103; and text overlap with arXiv:arXiv:gr-qc/0305041 by other author