Essential Renormalization Group Equation for Gravity coupled to a Scalar field
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arXiv
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866908553709617152 |
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| author | Ohta, Nobuyoshi Yamada, Masatoshi |
| author_facet | Ohta, Nobuyoshi Yamada, Masatoshi |
| contents | We study the essential renormalization group equation, in which inessential couplings are removed via field redefinitions, for Einstein gravity coupled to a massive scalar field in the presence of a cosmological constant. Our results indicate that perturbatively nonrenormalizable terms can be eliminated due to the cosmological term, in contrast to the case of perturbation around flat spacetime. We find a nontrivial fixed point for the Newton coupling and the cosmological term. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2506_03601 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Essential Renormalization Group Equation for Gravity coupled to a Scalar field Ohta, Nobuyoshi Yamada, Masatoshi High Energy Physics - Theory General Relativity and Quantum Cosmology We study the essential renormalization group equation, in which inessential couplings are removed via field redefinitions, for Einstein gravity coupled to a massive scalar field in the presence of a cosmological constant. Our results indicate that perturbatively nonrenormalizable terms can be eliminated due to the cosmological term, in contrast to the case of perturbation around flat spacetime. We find a nontrivial fixed point for the Newton coupling and the cosmological term. |
| title | Essential Renormalization Group Equation for Gravity coupled to a Scalar field |
| topic | High Energy Physics - Theory General Relativity and Quantum Cosmology |
| url | https://arxiv.org/abs/2506.03601 |