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gr-qc2024
Stability of cosmological singularity-free solutions in quadratic gravity
M. Asorey, F. Ezquerro, M. Pardina
We introduce a large family of homogeneous and isotropic cosmological solutions in quadratic gravity which are singularity-free at early and late times. This kind of smooth solutio…
gr-qc2024★ 8 cited
Bound states of massive complex ghosts in superrenormalizable quantum gravity theories\
Manuel Asorey, Gastao Krein, Miguel Pardina +1
One of the remarkable differences between renormalizable quantum gravity with four-derivative action and its superrenormalizable polynomial generalizations is that the latter admit…