Cosmological and Black Hole Spacetimes in Twisted Noncommutative Gravity

Details Cosmological and Black Hole Spacetimes in Twisted Noncommutative Gravity Cosmological and Black Hole Spacetimes in Twisted Noncommutative Gravity

2009-06-15

arxiv.org/abs/0906.2730v1

JHEP10(2009)052

Physics

High Energy Physics

High Energy Physics - Theory

LaTeX 12 pages, JHEP.sty

Scientific paper

10.1088/1126-6708/2009/10/052

We derive noncommutative Einstein equations for abelian twists and their solutions in consistently symmetry reduced sectors, corresponding to twisted FRW cosmology and Schwarzschild black holes. While some of these solutions must be rejected as models for physical spacetimes because they contradict observations, we find also solutions that can be made compatible with low energy phenomenology, while exhibiting strong noncommutativity at very short distances and early times.

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