A two-parameter exact traversable wormhole solution is constructed in Einstein-scalar-Gauss-Bonnet theory with power-Maxwell electrodynamics, recovering the Ellis wormhole when the electric charge vanishes.
Ellis wormhole without a phantom scalar field
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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.
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gr-qc 1years
2019 1verdicts
CONDITIONAL 1representative citing papers
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New exact traversable wormhole solution to the Einstein-scalar-Gauss-Bonnet Equations coupled to a power-Maxwell electrodynamics
A two-parameter exact traversable wormhole solution is constructed in Einstein-scalar-Gauss-Bonnet theory with power-Maxwell electrodynamics, recovering the Ellis wormhole when the electric charge vanishes.