Scaling solutions for asymptotically free quantum gravity

被引:1
|
作者
Sen, Saswato [1 ]
Wetterich, Christof [2 ]
Yamada, Masatoshi [2 ,3 ,4 ]
机构
[1] Okinawa Inst Sci & Technol Grad Univ, 1919-1 Tancha, Kunigami, Okinawa 9040412, Japan
[2] Heidelberg Univ, Inst Theoret Phys, Philosophenweg 16, D-69120 Heidelberg, Germany
[3] Jilin Univ, Ctr Theoret Phys, Changchun 130012, Peoples R China
[4] Jilin Univ, Coll Phys, Changchun 130012, Peoples R China
关键词
Models of Quantum Gravity; Nonperturbative Effects; Renormalization Group; EXACT RENORMALIZATION-GROUP; EVOLUTION EQUATION; FLOW EQUATIONS; SAFETY; INFLATION; MODELS; POINT; RG;
D O I
10.1007/JHEP02(2023)054
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
We compute scaling solutions of functional flow equations for quantum grav- ity in a general truncation with up to four derivatives of the metric. They connect the asymptotically free ultraviolet fixed point, which is accessible to perturbation theory, to the non-perturbative infrared region. The existence of such scaling solutions is necessary for a renormalizable quantum field theory of gravity. If the proposed scaling solution is confirmed beyond our approximations asymptotic freedom is a viable alternative to asymptotic safety for quantum gravity.
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页数:33
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