Thick brane solitons breaking $Z_2$ symmetry
Abstract
New soliton solutions for thick branes in 4 + 1 dimensions are considered in this article. In particular, brane models based on the sine-Gordon (SG), and scalar fields are investigated; in some cases symmetry is broken. Besides, these soliton solutions are responsible for supporting and stabilizing the thick branes. In these models, the origin of the symmetry breaking resides in the fact that the modified scalar field potential may have non-degenerate vacuua and these non-degenerate vacuua determine the cosmological constant on both sides of the brane. At last, in order to explore the particle motion in the neighborhood of the brane, the geodesic equations along the fifth dimension are studied.
Keywords
Cite
@article{arxiv.1509.04577,
title = {Thick brane solitons breaking $Z_2$ symmetry},
author = {Marzieh Peyravi and Nematollah Riazi and Francisco S. N. Lobo},
journal= {arXiv preprint arXiv:1509.04577},
year = {2015}
}
Comments
6 pages, 3 figures; contribution to the proceedings of the "The Fourtheenth Marcel Grossmann Meeting on General Relativity", University of Rome "La Sapienza", Rome, July 12-18, 2015, based on a talk delivered at the AT2-Alternative Theories parallel session