219 citations · 2.2k across the 94 of their papers we have counts for
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Exploring alternatives to the Hamiltonian calculation of the Ashtekar-Olmedo-Singh black hole solution
Alejandro García-Quismondo, Guillermo A. Mena Marugán
In this article, we reexamine the derivation of the dynamical equations of the Ashtekar-Olmedo-Singh black hole model in order to determine whether it is possible to construct a Ha…
Non-oscillating vacuum states and the quantum homogeneity and isotropy hypothesis in Loop Quantum Cosmology
Beatriz Elizaga Navascués, Guillermo A. Mena Marugán, Santiago Prado
We study the compatibility of the quantum homogeneitiy and isotropy hypothesis (QHIH), proposed by Ashtekar and Gupt to restrict the choice of vacuum state for the cosmological per…
Primordial perturbations in kinetically dominated regimes of general relativity and hybrid quantum cosmology
Beatriz Elizaga Navascués, Rafael Jiménez-Llamas, Guillermo A. Mena Marugán
Scalar fields with an energy density dominated by its kinetic part may have played a relevant role in the very early stages of the Universe. Compared to the standard inflationary p…
Analytical investigation of pre-inflationary effects in the primordial power spectrum: From General Relativity to hybrid Loop Quantum Cosmology
Beatriz Elizaga Navascués, Guillermo A. Mena Marugán
This work is an analytical study of the main differences between classical inflationary effects of a fast-roll regime and imprints of hybrid Loop Quantum Cosmology (LQC) on the pri…
Quantization ambiguities and the robustness of effective descriptions of primordial perturbations in hybrid Loop Quantum Cosmology
Beatriz Elizaga Navascués, Guillermo A. Mena Marugán
We study the imprint that certain quantization ambiguities may leave in effective regimes of the hybrid loop quantum description of cosmological perturbations. More specifically, i…