论文标题

单模型量子重力:超出扰动理论的步骤

Unimodular quantum gravity: Steps beyond perturbation theory

论文作者

de Brito, Gustavo P., Pereira, Antonio D.

论文摘要

通过考虑重力和Faddeev-Popov鬼魂异常维度来计算单型量子重力的重新规范化组流动。在这种情况下,发现了紫外线有吸引力的固定点。引入了由粗粒程序引起的对称性术语,并分析了它们对流动的影响。除了扰动理论之外,还提供了关于单型量子重力和标准完全差异不变理论的等效性的讨论。

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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