Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2010-03-16
Physics Letters B 690, 196-200 (2010)
Physics
High Energy Physics
High Energy Physics - Theory
6 pages, twocolumn REVTeX ; Published version
Scientific paper
We show that for four-dimensional spacetimes with a non-null hypersurface orthogonal Killing vector and for a Chern-Simons (CS) background (non-dynamical) scalar field, which is constant along the Killing vector, the source-free equations of CS modified gravity decouple into their Einstein and Cotton constituents. Thus, the model supports only general relativity solutions. We also show that, when the cosmological constant vanishes and the gradient of the CS scalar field is parallel to the non-null hypersurface orthogonal Killing vector of constant length, CS modified gravity reduces to topologically massive gravity in three dimensions. Meanwhile, with the cosmological constant such a reduction requires an appropriate source term for CS modified gravity.
Ahmedov Haji
Aliev Alikram N.
No associations
LandOfFree
Decoupling and Reduction in Chern-Simons Modified Gravity 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 Decoupling and Reduction in Chern-Simons Modified Gravity, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Decoupling and Reduction in Chern-Simons Modified Gravity will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-246355