Counterterms in semiclassical Horava-Lifshitz gravity

GASTON GIRIBET, DIANA LÓPEZ NACIR, F.D. MAZZITELLI

JOURNAL OF HIGH ENERGY PHYSICS

SPRINGER

Lugar: New York; Año: 2010 vol. 9 p. 9 - 19

1126-6708

We analyze the semiclassical Hoˇrava-Lifshitz gravity for quantum scalar fields in 3 + 1 dimensions. The renormalizability of the theory requires that the action of the scalar field contains terms with six spatial derivatives of the field, i.e. in the UV, the classical action of the scalar field should preserve the anisotropic scaling symmetry (t → L 2z t,