Wave function renormalization in asymptotically safe quantum gravity
We discuss the effect of wave function renormalization (WFR) in asymptotically safe gravity. We show that there are two WFR-invariant quantities, and the renormalization (RG) equations may be written entirely in terms of these quantities. The same set of RG equations can be obtained whether we fix the vacuum energy or Newton coupling along the RG trajectory. The flow of the Newton constant and the vacuum energy is also discussed in detail. In particular we discuss how the vacuum energy behaves near the singular barrier in the low energy.
Authors
- H. Kawai (ORCID: https://orcid.org/0000-0001-9104-2211)
- Nobuyoshi Ohta (ORCID: https://orcid.org/0000-0002-8265-8636)
Institutions
- National Taiwan University (TW)
- National Center for Theoretical Sciences (TW)
- Osaka Metropolitan University (JP)
- National Center for Theoretical Sciences, Physics Division
- Kindai University (JP)
Publication Details
- Journal
- Physical review. D/Physical review. D.
- Published
- 2025-02-06
- DOI
- https://doi.org/10.1103/physrevd.111.046012
- Citations
- 4
- Primary Topic
- Cosmology and Gravitation Theories
- Type
- article
- Field-Weighted Citation Impact
- 4.62
Funders
- Ministry of Science and Technology, Taiwan
- National Taiwan University
- Japan Society for the Promotion of Science