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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…
hep-th2024★ 4 cited
Casimir Energy in (2 + 1)-Dimensional Field Theories
Manuel Asorey, Claudio Iuliano, Fernando Ezquerro
We explore the dependence of vacuum energy on the boundary conditions for massive scalar fields in (2 + 1)-dimensional spacetimes. We consider the simplest geometrical setup given…