Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology
Scientific paper
2010-08-07
Astronomy and Astrophysics
Astrophysics
General Relativity and Quantum Cosmology
15 pages
Scientific paper
We analyze 2+1-dimensional gravity in the framework of quantum gauge theory. We find that Einstein gravity has a trivial physical subspace which reflects the fact that the classical solution in empty space is flat. Therefore we study massive gravity which is not trivial. In the limit of vanishing graviton mass we obtain a non-trivial massless theory different from Einstein gravity. We derive the interaction from descent equations and obtain the cosmological topologically massive gravity. However, in addition to Einstein and Chern-Simons coupling we need coupling to fermionic ghost and anti-ghost fields and to a vector-graviton field with the same mass as the graviton.
Grigore Dan Radu
Scharf G"unter
No associations
LandOfFree
Non-trivial 2+1-Dimensional 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 Non-trivial 2+1-Dimensional Gravity, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Non-trivial 2+1-Dimensional Gravity will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-593730