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arXiv · 1204.5085

De-Sitter-spacetime instability from a nonstandard vector field

V. Emelyanov·F. R. Klinkhamer
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Abstract

It is found that de-Sitter spacetime, the constant-curvature matter-free solution of the Einstein equations with a positive cosmological constant, becomes classically unstable due to the dynamic effects of a certain type of vector field (fundamentally different from a gauge field). The perturbed de-Sitter universe evolves towards a final exotic singularity. The relevant vector-field configurations violate the strong and dominant energy conditions.

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V. Emelyanov, F. R. Klinkhamer. 2012-07-13. De-Sitter-spacetime instability from a nonstandard vector field. https://doi.org/10.1103/physrevd.86.027302

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