期刊
PHYSICAL REVIEW D
卷 93, 期 6, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.93.064022
关键词
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资金
- Theory Division, CERN
- Pacific Institute of Theoretical Physics, University of British Columbia
- RFBR [14-02-01173]
- Tomsk State University Competitiveness Improvement Program
- Institut de Theorie des Phenomenes Physiques at EPFL
- Physikalisches Institut at the University of Freiburg
- European Union [FP7 ITN INVISIBLES, PITN-GA-2011-289442]
- COST action [MP1210]
- Spanish MINECO Centro de Excelencia Severo Ochoa Programme [SEV-2012-0249]
- National Science Foundation [NSF PHY11-25915]
- Swiss National Science Foundation
- CERN Theory Division
- Instituto de Fisica Teorica UAM-CSIC
We prove perturbative renormalizability of projectable Horava gravity. The key element of the argument is the choice of a gauge which ensures the correct anisotropic scaling of the propagators and their uniform falloff at large frequencies and momenta. This guarantees that the counterterms required to absorb the loop divergences are local and marginal or relevant with respect to the anisotropic scaling. Gauge invariance of the counterterms is achieved by making use of the background-covariant formalism. We also comment on the difficulties of this approach when addressing the renormalizability of the nonprojectable model.
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