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Traversable wormholes in Einsteinian cubic gravity
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Traversable wormholes in Einsteinian cubic gravity
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In the present work we investigate wormhole configurations described by a constant redshift function in Einstein-Cubic gravity ({{\sf ECG}}). We derive analytical wormhole geometries by assuming a particular equation of state ({{\sf EoS}}) and investigate the possibility that these solutions satisfy the standard energy conditions. We introduce exact asymptotically flat and anti-de Sitter (AdS) spacetimes that admit traversable wormholes. These solutions are obtained by imposing suitable values for the parameters of the theory so that the resulted geometries satisfy the weak energy condition ({\sf WEC}) in the vicinity of the throat, due to the presence of higher-order curvature terms. Moreover, we find that AdS solutions satisfy the {\sf WEC} throughout the spacetime. A description of the geodesic motion of timelike and null particles is presented for the obtained wormhole solutions. Also, using gravitational lensing effects, observational features of the wormhole structure are discussed.
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Cited by 1 Pith paper
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Static stable timelike circular orbits and Aschenbach effect in horizonless solutions of Einsteinian cubic gravity
In Einsteinian cubic gravity, horizonless solutions possess static stable circular orbits at the ISCO, with a non-monotonic ZAMO velocity profile (Aschenbach effect).
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