English

The gravitational field of static p-branes in linearized ghost-free gravity

General Relativity and Quantum Cosmology 2018-04-18 v2

Abstract

We study the gravitational field of static p-branes in D-dimensional Minkowski space in the framework of linearized ghost-free (GF) gravity. The concrete models of GF gravity we consider are parametrized by the non-local form factors exp(/μ2)\exp(-\Box/\mu^2) and exp(2/μ4)\exp(\Box^2/\mu^4), where μ1\mu^{-1} is the scale of non-locality. We show that the singular behavior of the gravitational field of p-branes in General Relativity is cured by short-range modifications introduced by the non-localities, and we derive exact expressions of the regularized gravitational fields, whose geometry can be written as a warped metric. For large distances compared to the scale of non-locality, μr\mu r\rightarrow\infty, our solutions approach those found in linearized General Relativity.

Keywords

Cite

@article{arxiv.1802.09573,
  title  = {The gravitational field of static p-branes in linearized ghost-free gravity},
  author = {Jens Boos and Valeri P. Frolov and Andrei Zelnikov},
  journal= {arXiv preprint arXiv:1802.09573},
  year   = {2018}
}

Comments

11 pages, 4 figures, matches the published version