English

New brane-like solutions in modified four-dimensional Einstein-Gauss-Bonnet gravity

High Energy Physics - Theory 2025-06-13 v5 General Relativity and Quantum Cosmology

Abstract

We investigate solutions of a new 4D4D Einstein-Gauss-Bonnet gravity (4D4D EGBEGB). We first describe the bulk vacuum solution, then we add a massive probe scalar field, and we follow considering a self-interacting scalar field which acts as a source to support thick brane solutions in the four-dimensional EGBEGB scenario with a single extra dimension of infinite extent. We illustrate our results with some distinct brane-like configurations engendering controllable thickness. It is noteworthy that such configurations are simultaneous solutions in both versions of the modified theory of gravity, the original Glavan and Lin formulation and the regularized 4D4D EGBEGB.

Keywords

Cite

@article{arxiv.2308.09503,
  title  = {New brane-like solutions in modified four-dimensional Einstein-Gauss-Bonnet gravity},
  author = {D. Bazeia and R. Menezes and A. Yu. Petrov and P. J. Porfírio},
  journal= {arXiv preprint arXiv:2308.09503},
  year   = {2025}
}

Comments

28 pages, 6 figures, version accepted to IJMPD

R2 v1 2026-06-28T11:58:42.307Z