5 papers
Parametrization of the primordial power spectrum in loop quantum cosmology
Almudena Guillén, Kai Langer, Guillermo A. Mena Marugán +2
We investigate the imprints on the angular power spectra of cosmological perturbations of a pre-inflationary bounce phase, as described by the hybrid and dressed metric approaches…
Starobinsky potential and power suppression in hybrid Loop Quantum Cosmology
Marceau Henry, Guillermo A. Mena Marugán, Antonio Vicente-Becerril
We study the effect on the primordial tensor power spectrum of varying the number of e-folds during slow-roll inflation in Loop Quantum Cosmology with a Starobinsky potential. Usin…
Comparing Analytic and Numerical Studies of Tensor Perturbations in Loop Quantum Cosmology
Guillermo A. Mena Marugán, Antonio Vicente-Becerril, Jesús Yébana Carrilero
We investigate the implications of different quantization approaches in Loop Quantum Cosmology for the primordial power spectrum of tensor modes. Specifically, we consider the hybr…
Analytic Primordial Power Spectrum in the Dressed Metric Approach to Loop Quantum Cosmology and Thermodynamics of Spacetime
Ana Alonso-Serrano, Guillermo A. Mena Marugan, Antonio Vicente-Becerril
We investigate the primordial power spectrum of cosmological tensor perturbations in the dressed metric approach to Loop Quantum Cosmology. We compute the background-dependent effe…
Analytic and Numerical Study of Scalar Perturbations in Loop Quantum Cosmology
Guillermo A. Mena Marugán, Antonio Vicente-Becerril, Jesús Yébana Carrilero
The possibility that quantum geometry effects may alleviate the apparent tensions existing at large angular scales in the observations of the Cosmic Microwave Background explains t…