146 citations · 790 across the 27 of their papers we have counts for
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Uniqueness of the Fock quantization of scalar fields in a Bianchi I cosmology with unitary dynamics
Jerónimo Cortez, Beatriz Elizaga Navascués, Mercedes Martín-Benito +3
The Fock quantization of free scalar fields is subject to an infinite ambiguity when it comes to choosing a set of annihilation and creation operators, choice that is equivalent to…
Dirac fields in flat FLRW cosmology: Uniqueness of the Fock quantization
Jerónimo Cortez, Beatriz Elizaga Navascués, Mercedes Martín-Benito +2
We address the issue of the infinite ambiguity that affects the construction of a Fock quantization of a Dirac field propagating in a cosmological spacetime with flat compact secti…
Uniqueness of the Fock quantization of Dirac fields in 2+1 dimensions
Jerónimo Cortez, Beatriz Elizaga Navascués, Mercedes Martín-Benito +2
We study the Fock quantization of a free Dirac field in 2+1-dimensional backgrounds which are conformally ultrastatic, with a time-dependent conformal factor. As it is typical for…
Unique Fock quantization of a massive fermion field in a cosmological scenario
Jerónimo Cortez, Beatriz Elizaga Navascués, Mercedes Martín-Benito +2
It is well known that the Fock quantization of field theories in general spacetimes suffers from an infinite ambiguity, owing to the inequivalent possibilities in the selection of…
Quantum corrections to the Mukhanov-Sasaki equations
Laura Castelló Gomar, Mercedes Martín-Benito, Guillermo A. Mena Marugán
Recently, a lot of attention has been paid to the modifications of the power spectrum of primordial fluctuations caused by quantum cosmology effects. The origin of these modificati…