Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2008-10-27
JHEP 0901:084,2009
Physics
High Energy Physics
High Energy Physics - Theory
LaTeX, 20 pages, no figures, minor modifications, reference added, to appear in JHEP
Scientific paper
10.1088/1126-6708/2009/01/084
As a preparation for a mathematically consistent study of the physics of symmetric spacetimes in a noncommutative setting, we study symmetry reductions in deformed gravity. We focus on deformations that are given by a twist of a Lie algebra acting on the spacetime manifold. We derive conditions on those twists that allow a given symmetry reduction. A complete classification of admissible deformations is possible in a class of twists generated by commuting vector fields. As examples, we explicitly construct the families of vector fields that generate twists which are compatible with Friedmann-Robertson-Walker cosmologies and Schwarzschild black holes, respectively. We find nontrivial isotropic twists of FRW cosmologies and nontrivial twists that are compatible with all classical symmetries of black hole solutions.
Ohl Thorsten
Schenkel Alexander
No associations
LandOfFree
Symmetry Reduction in Twisted Noncommutative Gravity with Applications to Cosmology and Black Holes does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Symmetry Reduction in Twisted Noncommutative Gravity with Applications to Cosmology and Black Holes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Symmetry Reduction in Twisted Noncommutative Gravity with Applications to Cosmology and Black Holes will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-324603