English

Ellis wormhole without a phantom scalar field

General Relativity and Quantum Cosmology 2019-09-11 v2 High Energy Physics - Theory

Abstract

In this paper, we present an exact solution for (3+1)(3+1)-dimensional Einstein-scalar-Gauss-Bonnet theory (EsGB) in electrovacuum. The solution is characterized by only one parameter, QQ, which in general can be associated with the electromagnetic field and the scalar field. We show that the solution corresponds to a charged wormhole with throat at the region r=Qr = |Q|, and is also supported by a real scalar field having a positive kinetic term. We show that the solution belongs to the most general class of solutions known as Ellis wormholes but without the need for `exotic matter' or a phantom scalar field.

Cite

@article{arxiv.1907.09463,
  title  = {Ellis wormhole without a phantom scalar field},
  author = {Pedro Cañate and Joseph Sultana and Demosthenes Kazanas},
  journal= {arXiv preprint arXiv:1907.09463},
  year   = {2019}
}

Comments

12 pages, 3 figures. Minor changes, matches published version

R2 v1 2026-06-23T10:27:26.551Z