Unimodular quantum gravity: steps beyond perturbation theory

被引：17
|
作者：
de Brito, Gustavo P. [1 ]
Pereira, Antonio D. [2 ]
机构：
[1] Ctr Brasileiro Pesquisas Fis CBPF, Rua Xavier Sigaud 150, BR-22290180 Rio De Janeiro, RJ, Brazil
[2] Univ Fed Fluminense, Inst Fis, Campus Praia Vermelha,Ave Litoranea S-N, BR-24210346 Niteroi, RJ, Brazil
来源：
JOURNAL OF HIGH ENERGY PHYSICS | 2020年 / 2020卷 / 09期
关键词：
Models of Quantum Gravity; Nonperturbative Effects; Renormalization Group; COSMOLOGICAL CONSTANT; EVOLUTION EQUATION; ASYMPTOTIC SAFETY; FIXED-POINT;
D O I：
10.1007/JHEP09(2020)196
中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号：
摘要：
The renormalization group flow of unimodular quantum gravity is computed by taking into account the graviton and Faddeev-Popov ghosts anomalous dimensions. In this setting, a ultraviolet attractive fixed point is found. Symmetry-breaking terms induced by the coarse-graining procedure are introduced and their impact on the flow is analyzed. A discussion on the equivalence of unimodular quantum gravity and standard full diffeomorphism invariant theories is provided beyond perturbation theory.
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页数：34
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