219 citations · 2.2k across the 94 of their papers we have counts for
5 papers · 1 filter
Unitary evolution and uniqueness of the Fock quantization in flat cosmologies with compact spatial sections
Laura Castelló Gomar, Jerónimo Cortez, Daniel Martín-de Blas +2
We study the Fock quantization of scalar fields with a time dependent mass in cosmological scenarios with flat compact spatial sections. This framework describes physically interes…
Hybrid quantization of an inflationary universe
Mikel Fernández-Méndez, Guillermo A. Mena Marugán, Javier Olmedo
We quantize to completion an inflationary universe with small inhomogeneities in the framework of loop quantum cosmology. The homogeneous setting consists of a massive scalar field…
Inflationary Perturbations in Anisotropic, Shear-Free Universes
Thiago S. Pereira, Saulo Carneiro, Guillermo A. Mena Marugan
In this work, the linear and gauge-invariant theory of cosmological perturbations in a class of anisotropic and shear-free spacetimes is developed. After constructing an explicit s…
Unique Fock quantization of scalar cosmological perturbations
Mikel Fernández-Méndez, Guillermo A. Mena Marugán, Javier Olmedo +1
We investigate the ambiguities in the Fock quantization of the scalar perturbations of a Friedmann-Lemaître-Robertson-Walker model with a massive scalar field as matter content. We…
Criteria for the determination of time dependent scalings in the Fock quantization of scalar fields with a time dependent mass in ultrastatic spacetimes
Jerónimo Cortez, Guillermo A. Mena Marugán, Javier Olmedo +1
For Klein-Gordon fields, it is well known that there exist an infinite number of nonequivalent Fock representations of the canonical commutation relations and, therefore, of inequi…