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Singularity Theorems in the Effective Field Theory for Quantum Gravity at Second Order in Curvature
2020
Universe
In this paper, we discuss singularity theorems in quantum gravity using effective field theory methods. To second order in curvature, the effective field theory contains two new degrees of freedom which have important implications for the derivation of these theorems: a massive spin-2 field and a massive spin-0 field. Using an explicit mapping of this theory from the Jordan frame to the Einstein frame, we show that the massive spin-2 field violates the null energy condition, while the massive
doi:10.3390/universe6100171
fatcat:bziv2d6l4bb3tmssps74tcpkrq