Work

Ellis wormhole without a phantom scalar field

Year: 2019

Type: article

Abstract: In this paper, we present an exact solution for ($3+1$)-dimensional Einstein-scalar-Gauss-Bonnet theory (EsGB) in electrovacuum. The solution is characterized by only one parameter, $Q$, 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 a throat at the region $r=|Q|$ 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.

Source: Physical review. D/Physical review. D.

DOI: 10.1103/physrevd.100.064007

Authors: Pedro Cañate, Joseph Sultana, Demosthenes Kazanas

Institutions: Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, University of Malta, Goddard Space Flight Center

Language: English

Topic: Cosmology and Gravitation Theories

Subfield: Astronomy and Astrophysics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

Funder: Consejo Nacional de Ciencia y Tecnología

Award: G2333673854