Quantum Yang-Mills Dark Energy

被引：10
作者：
Pasechnik, Roman [1 ]
机构：
[1] Lund Univ, Dept Astron & Theoret Phys, SE-22362 Lund, Sweden
来源：
UNIVERSE | 2016年 / 2卷 / 01期
基金：
瑞典研究理事会;
关键词：
Einstein-Yang-Mills theory; classical Yang-Mills fields; dark energy; gauge-flation; gluon condensate; effective Yang-Mills action; PROBE WMAP OBSERVATIONS; COSMOLOGICAL CONSTANT; RESONANCE PHYSICS; FIELD; VACUUM; INSTANTONS; CONDENSATE; ANOMALIES; MODELS; TRACE;
D O I：
10.3390/universe2010004
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
In this short review, I discuss basic qualitative characteristics of quantum non-Abelian gauge dynamics in the non-stationary background of the expanding Universe in the framework of the standard Einstein-Yang-Mills formulation. A brief outlook of existing studies of cosmological Yang-Mills fields and their properties will be given. Quantum effects have a profound impact on the gauge field-driven cosmological evolution. In particular, a dynamical formation of the spatially-homogeneous and isotropic gauge field condensate may be responsible for both early and late-time acceleration, as well as for dynamical compensation of non-perturbative quantum vacua contributions to the ground state of the Universe. The main properties of such a condensate in the effective QCD theory at the flat Friedmann-Lemaitre-Robertson-Walker (FLRW) background will be discussed within and beyond perturbation theory. Finally, a phenomenologically consistent dark energy can be induced dynamically as a remnant of the QCD vacua compensation arising from leading-order graviton-mediated corrections to the QCD ground state.
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页数：24
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