'Krein' regularization method
| Autor: | Takook, M. V. |
|---|---|
| Přispěvatelé: | AstroParticule et Cosmologie (APC (UMR_7164)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité) |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
04.62.+v
High Energy Physics - Theory Nuclear and High Energy Physics gravitation: renormalizable FOS: Physical sciences General Physics and Astronomy General Relativity and Quantum Cosmology (gr-qc) derivative: high metric: fluctuation General Relativity and Quantum Cosmology renormalization gravitation: linear Krein space quantization QFT regularization quantum linear gravity 12.10.Dm QFT in curved space [PHYS.HTHE]Physics [physics]/High Energy Physics - Theory [hep-th] 98.80.Cq Astronomy and Astrophysics space: Krein regularization High Energy Physics - Theory (hep-th) space-time [PHYS.GRQC]Physics [physics]/General Relativity and Quantum Cosmology [gr-qc] quantization |
| Zdroj: | Mod.Phys.Lett.A Mod.Phys.Lett.A, 2022, 37 (10), pp.2250059. ⟨10.1142/S0217732322500596⟩ |
| DOI: | 10.1142/S0217732322500596⟩ |
| Popis: | The "Krein" regularization method of quantum field theory is studied, inspired by the Krein space quantization and quantum metric fluctuations. It was previously considered in the one-loop approximation, and this paper is generalized to all orders of perturbation theory. We directly recover the physical results previously obtained starting from the standard QFT by imposing the renormalization conditions. By applying our approach to the QFT in curved space-time and quantum linear gravity, we discuss that there is no need for the higher derivative of the metric tensor for the renormalization of the theory. The advantage of our method compared to the previous ones is that the linear quantum gravity is renormalizable in all orders of perturbation theory. 10 pages, a reference added, explanations added, typos corrected, accepted for publication in Modern Physics Letters A |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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