Instability of de Sitter spacetime from a nonstandard vector field

Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology

Scientific paper

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7 pages, v2: typo corrected, references added

Scientific paper

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 relevant
vector-field configurations violate the strong and dominant energy conditions.

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