Traversable wormhole in the deformed Hořava-Lifshitz gravity

Details Traversable wormhole in the deformed Hořava-Lifshitz gravity Traversable wormhole in the deformed Hořava-Lifshitz gravity

2010-11-16

arxiv.org/abs/1011.3596v2

Phys.Rev.D83:124012,2011

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

13 pages, 2 figures, version published in Phys. Rev. D

Scientific paper

10.1103/PhysRevD.83.124012

Asymptotically flat wormhole solutions are found in the deformed Ho\v{r}ava-Lifshitz gravity. It turns out that higher curvature terms can not play the role of exotic matters which are crucial to form a traversable wormhole, and external exotic sources are still needed. In particular, the exotic matter behaves like phantom energy if Kehagias-Sfetsos vacuum is considered outside the wormhole. Interestingly, the spherically symmetric setting makes the matter and the higher curvature contribution satisfy four-dimensional conservation of energy in the covariant form.

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