Large logarithms from quantum gravitational corrections to a massless, minimally coupled scalar on de Sitter

被引：15

作者：

Glavan, D. ^{[1
]}

Miao, S. P. ^{[2
]}

Prokopec, T. ^{[3
,4
]}

Woodard, R. P. ^{[5
]}

机构：

[1] Czech Acad Sci FZU, CEICO, Inst Phys, Na Slovance 1999-2, Prague 18221 8, Czech Republic

[2] Natl Cheng Kung Univ, Dept Phys, 1 Univ Rd, Tainan 70101, Taiwan

[3] Univ Utrecht, Inst Theoret Phys, Spinoza Inst, Postbus 80-195, NL-3508 TD Utrecht, Netherlands

[4] Univ Utrecht, EMME, Postbus 80-195, NL-3508 TD Utrecht, Netherlands

[5] Univ Florida, Dept Phys, Gainesville, FL 32611 USA

来源：

JOURNAL OF HIGH ENERGY PHYSICS | 2022年 / 2022卷 / 03期

关键词：

Effective Field Theories; Models of Quantum Gravity; Cosmology of Theories beyond the SM; Renormalization Group; EXPECTATION VALUE FORMALISM; BACK-REACTION; SELF-ENERGY; FIELD; EQUILIBRIUM; SPECTRUM; GRAVITY; STATE;

D O I：

10.1007/JHEP03(2022)088

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 consider single graviton loop corrections to the effective field equation of a massless, minimally coupled scalar on de Sitter background in the simplest gauge. We find a large temporal logarithm in the approach to freeze-in at late times, but no correction to the feeze-in amplitude. We also find a large spatial logarithm (at large distances) in the scalar potential generated by a point source, which can be explained using the renormalization group with one of the higher derivative counterterms regarded as a curvature-dependent field strength renormalization. We discuss how these results set the stage for a project to purge gauge dependence by including quantum gravitational corrections to the source which disturbs the effective field and to the observer who measures it.

引用

页数：23

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