Closure of the algebra of constraints for a nonprojectable Hořava model
arXiv:1010.5531 · doi:10.1103/PhysRevD.83.044003
Abstract
We perform the Hamiltonian analysis for a nonprojectable Horava model whose potential is composed of R and R^2 terms. We show that Dirac's algorithm for the preservation of the constraints can be done in a closed way, hence the algebra of constraints for this model is consistent. The model has an extra, odd, scalar mode whose decoupling limit can be seen in a linear-order perturbative analysis on weakly varying backgrounds. Although our results for this model point in favor of the consistency of the Hořava theory, the validity of the full nonprojectable theory still remains unanswered.
Some comments added in conclusions and abstract. Version published in Phys. Rev. D. 15 pages, 1 figure
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- On Friedmann-Lema\^ıtre-Robertson-Walker cosmologies in non-standard gravity
- Spontaneous Symmetry Breaking and Landau Phase Transition in Horava Gravity