# Ellis wormhole without a phantom scalar field

## TL;DR

This paper introduces an exact, charged Ellis wormhole solution in Einstein-scalar-Gauss-Bonnet theory supported by a real scalar field, eliminating the need for exotic matter or phantom fields.

## Contribution

The paper presents the first exact Ellis wormhole solution in EsGB theory supported by a real scalar field without exotic matter or phantom fields.

## Key findings

- The solution describes a charged wormhole with a scalar field.
- It belongs to the Ellis wormhole class but without exotic matter.
- The solution is characterized by a single parameter, Q.

## 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 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.