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arXiv 2109.01647hep-thgr-qchep-ph
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引力和有限温度效应的量子化

Quantization of gravity and finite temperature effects

I. Y. Park

摘要:

引力对于可以通过基于叶理的量子化方便地定义的物理状态是微扰重整化的。在最近的续集中,单回路分析明确进行了爱因斯坦标量和爱因斯坦麦克斯韦系统。各种密切相关的问题和所有循环的可重正化性已得到解决。在目前的工作中,我们通过执行几项额外的任务取得了进一步的进展。首先,我们提出了一个替代的四维协变推导的物理状态条件,通过检查规范的选择无关的散射振幅。为此,在普通规范对称性和大规范对称性之间需要仔细的二分法,并且必须对普通规范对称性进行适当的规范固定。其次,在有限温度装置中分析了真空能量。将最优摄动理论应用于双环控制。由最佳微扰理论确定的重整化质量原来是在温度的数量级上,允许人们避免宇宙学常数问题。第三个任务,我们采取的是审查的可能性渐近自由的有限温度量子电动力学。尽管在文献中存在争议,但这一想法仍然是合理的。

英文摘要:

Gravity is perturbatively renormalizable for the physical states which can be conveniently defined via foliation-based quantization. In recent sequels, one-loop analysis was explicitly carried out for Einstein-scalar and Einstein-Maxwell systems. Various germane issues and all-loop renormalizability have been addressed. In the present work we make further progress by carrying out several additional tasks. Firstly, we present an alternative 4D covariant derivation of the physical state condition by examining gauge choice-independence of a scattering amplitude. To this end, a careful dichotomy between the ordinary, and large gauge symmetries is required and appropriate gauge-fixing of the ordinary symmetry must be performed. Secondly, vacuum energy is analyzed in a finite-temperature setup. A variant optimal perturbation theory is implemented to two-loop. The renormalized mass determined by the optimal perturbation theory turns out to be on the order of the temperature, allowing one to avoid the cosmological constant problem. The third task that we take up is examination of the possibility of asymptotic freedom in finite-temperature quantum electrodynamics. In spite of the debates in the literature, the idea remains reasonable.

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