Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Covariant computation of effective actions in Horava-Lifshitz gravity   We initiate the systematic computation of the heat-kernel coefficients for
Laplacian operators obeying anisotropic dispersion relations in curved
spacetime. Our results correctly reproduce the limit where isotropy is restored
and special anisotropic cases considered previously in the literature.
Subsequently, the heat kernel is used to derive the scalar-induced one-loop
effective action and beta functions of Horava-Lifshitz gravity. We identify the
Gaussian fixed point which is supposed to provide the UV completion of the
theory. In the present setting, this fixed point acts as an infrared attractor
for the renormalization group flow of Newton's constant and the high-energy
phase of the theory is screened by a Landau pole. We comment on the
consequences of these findings for the renormalizability of the theory.

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The categories of this paper are: quant-ph
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The categories of this paper are: acc-phys
31
The categories of this paper are: ao-sci
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The categories of this paper are: chao-dyn
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The categories of this paper are: astro-ph
3
The categories of this paper are: physics
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The categories of this paper are: hep-ex
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The categories of this paper are: hep-ph
32
The categories of this paper are: atom-ph
28
The categories of this paper are: alg-geom
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The categories of this paper are: cs
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The categories of this paper are: cmp-lg
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The categories of this paper are: q-fin
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The categories of this paper are: nucl-th
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The categories of this paper are: plasm-ph
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The categories of this paper are: adap-org