3 papers
gr-qc2026
Quantum Einsteinian Cubic Cosmology
Nephtalà Eliceo MartÃnez Pérez, Cupatitzio RamÃrez Romero
We study Cosmological Einsteinian Cubic Gravity (CECG) arXiv:1810.08166v3 in the context of minisuperspace quantum cosmology. CECG is a modification of Einstein's gravity by cubic…
hep-th2025
On FLRW reductions of N=1 supergravity
Nephtalà Eliceo MartÃnez-Pérez, Cupatitzio RamÃrez Romero
An FLRW reduction of N=1 supergravity is troublesome since spatial isotropy prohibits a non-vanishing Rarita-Schwinger field. In view of this, we consider the quadratic form $Ï_m^…
gr-qc2024
Effects of quantum corrections to Lorentzian vacuum transitions in the presence of gravity
H. GarcÃa-Compeán, J. Hernández-Aguilar, D. Mata-Pacheco +1
We present a study of the vacuum transition probabilities taking into account quantum corrections. We first introduce a general method that expands previous works employing the Lor…