Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology
Scientific paper
2010-07-09
Phys.Lett.B701:275-278,2011
Astronomy and Astrophysics
Astrophysics
General Relativity and Quantum Cosmology
4 pages
Scientific paper
10.1016/j.physletb.2011.05.055
Both projectable and non-projectable versions of Horava-Lifshitz gravity face serious challenges. In the non-projectable version, the constraint algebra is seemingly inconsistent. The projectable version lacks a local Hamiltonian constraint, thus allowing for an extra scalar mode which can be problematic. A new formulation of non-projectable Horava-Lifshitz gravity, naturally realized as a representation of the master constraint algebra studied by loop quantum gravity researchers, is presented. This yields a consistent canonical theory with first class constraints. It captures the essence of Horava-Lifshitz gravity in retaining only spatial diffeomorphisms (instead of full space-time covariance) as the physically relevant non-trivial gauge symmetry; at the same time the local Hamiltonian constraint needed to eliminate the extra mode is equivalently enforced by the master constraint.
Soo Chopin
Yang Jinsong
Yu Hoi--Lai
No associations
LandOfFree
New formulation of Horava-Lifshitz quantum gravity as a master constraint theory 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 New formulation of Horava-Lifshitz quantum gravity as a master constraint theory, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and New formulation of Horava-Lifshitz quantum gravity as a master constraint theory will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-645209