146 citations · 790 across the 27 of their papers we have counts for
3 papers · 1 filter
Unitary evolution and uniqueness of the Fock representation of Dirac fields in cosmological spacetimes
Jerónimo Cortez, Beatriz Elizaga Navascués, Mercedes Martín-Benito +2
We present a privileged Fock quantization of a massive Dirac field in a closed Friedmann-Robertson-Walker cosmology, partially selected by the criteria of invariance of the vacuum…
Modified FRW cosmologies arising from states of the hybrid quantum Gowdy model
Beatriz Elizaga Navascués, Mercedes Martín-Benito, Guillermo A. Mena Marugán
We construct approximate solutions of the hybrid quantum Gowdy cosmology with three-torus topology, linear polarization, and local rotational symmetry, in the presence of a massles…
Gauge-Invariant Perturbations in Hybrid Quantum Cosmology
Laura Castelló Gomar, Mercedes Martín-Benito, Guillermo A. Mena Marugán
We consider cosmological perturbations around homogeneous and isotropic spacetimes minimally coupled to a scalar field and present a formulation which is designed to preserve covar…