49 citations · 286 across the 14 of their papers we have counts for
14 papers
Unique fermionic vacuum in de Sitter spacetime from hybrid quantum cosmology
Beatriz Elizaga Navascués, Guillermo A. Mena Marugán, Santiago Prado
In this work we show how the criterion of asymptotic Hamiltonian diagonalization originated in hybrid quantum cosmology serves to pick out a unique vacuum for the Dirac field in de…
Asymptotic diagonalization of the fermionic Hamiltonian in hybrid loop quantum cosmology
Beatriz Elizaga Navascués, Guillermo A. Mena Marugán, Santiago Prado
We use the freedom available in hybrid loop quantum cosmology to split the degrees of freedom between the geometry and the matter fields so as to build a quantum field theory for t…
Hamiltonian diagonalization in hybrid quantum cosmology
Beatriz Elizaga Navascués, Guillermo A. Mena Marugán, Thomas Thiemann
We explore the possibility of selecting a natural vacuum state for scalar and tensor gauge-invariant cosmological perturbations in the context of hybrid quantum cosmology, by ident…
The Martin-Benito-Mena Marugan-Olmedo prescription for the Dapor-Liegener model of Loop Quantum Cosmology
Alejandro García-Quismondo, Guillermo A. Mena Marugán
Recently, an alternative Hamiltonian constraint for Loop Quantum Cosmology has been put forward by Dapor and Liegener, inspired by previous work on regularization due to Thiemann.…
The Vacuum State of Primordial Fluctuations in Hybrid Loop Quantum Cosmology
Beatriz Elizaga Navascués, Daniel Martín de Blas, Guillermo A. Mena Marugán
We investigate the role played by the vacuum of the primordial fluctuations in hybrid Loop Quantum Cosmology. We consider scenarios where the inflaton potential is a mass term and…
Backreaction of fermionic perturbations in the Hamiltonian of hybrid loop quantum cosmology
Beatriz Elizaga Navascués, Guillermo A. Mena Marugán, Santiago Prado Loy
We discuss the freedom available in hybrid loop quantum cosmology to define canonical variables for the matter content and investigate whether this can be used to derive a quantum…