BRST invariant higher derivative operators in 4D quantum gravity based on CFT
BRST invariant higher derivative operators in 4D quantum gravity based on CFT
We continue the study of physical fields for the background free 4D quantum gravity based on the Riegert-Wess-Zumino action, developed in Phys. Rev. D {\bf 85} (2012) 024028. The background free model is formulated in terms of a certain conformal field theory on M^4 in which conformal symmetry arises as …