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- Title
Exact renormalization group and running Newtonian coupling in higher-derivative gravity.
- Authors
Bytsenko, A. A.; Granda, L. N.; Odintsov, S. D.
- Abstract
We discuss exact renormalization group (RG) in R[sup 2] gravity using the effective average action formalism. The truncated evolution equation for such a theory against the de Sitter background leads to a system of nonperturbative RG equations for cosmological and gravitational coupling constants. An approximate solution of these RG equations shows that antiscreening or screening behavior of the Newtonian coupling arises, depending on the higher-derivative coupling constants. © 1997 American Institute of Physics.
- Subjects
RENORMALIZATION group; GRAVITY; EVOLUTION equations; COUPLING constants
- Publication
JETP Letters, 1997, Vol 65, Issue 8, p600
- ISSN
0021-3640
- Publication type
Article
- DOI
10.1134/1.567411