We discuss various realizations of the Weyl group in the background field expansion of quantum gravity, in the presence of a cutoff, as required in applications of the functional renormalization group. To study the background dependence, special attention is given to split gauge transformations, which act on the background field and fluctuation keeping the total metric unchanged. The results generalize previous works on global and local scale transformations.
Split Weyl transformations in quantum gravity / Nieto Guerrero, Carlos Mauricio; Percacci, Roberto; Skrinjar, Vedran. - In: PHYSICAL REVIEW D. - ISSN 2470-0010. - 96:10(2017), pp. 1-13. [10.1103/PhysRevD.96.106019]
Split Weyl transformations in quantum gravity
Nieto Guerrero, Carlos Mauricio;Percacci, Roberto;Skrinjar, Vedran
2017-01-01
Abstract
We discuss various realizations of the Weyl group in the background field expansion of quantum gravity, in the presence of a cutoff, as required in applications of the functional renormalization group. To study the background dependence, special attention is given to split gauge transformations, which act on the background field and fluctuation keeping the total metric unchanged. The results generalize previous works on global and local scale transformations.| File | Dimensione | Formato | |
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