A. Ferreiro

activity

20172026

most citedAdiabatic expansions for Dirac fields, renormalization, and anomalies

32 citations · 171 across the 20 of their papers we have counts for

collaborators

Showing 2022Show all

2 papers · 1 filter

gr-qc2022★ 6 cited

Ultraviolet-regularized power spectrum without infrared distortions in cosmological spacetimes

Antonio Ferreiro, Francisco Torrenti

We reexamine the regularization of the two-point function of a scalar field in a Friedmann-Lemaitre-Robertson-Walker (FLRW) spacetime. Adiabatic regularization provides a set of su…

gr-qc2022

Adiabatic regularization and preferred vacuum state for the $λ ϕ^{4}$ field theory in cosmological spacetimes

Antonio Ferreiro, Silvia Pla

We extend the method of adiabatic regularization by introducing an arbitrary parameter $μ$ for a scalar field with quartic self-coupling in a Friedmann-Lemaître-Robertson-Walker (F…

Ultraviolet-regularized power spectrum without infrared distortions in cosmological spacetimes

Adiabatic regularization and preferred vacuum state for the λϕ4 field theory in cosmological spacetimes

Adiabatic regularization and preferred vacuum state for the $λ ϕ^{4}$ field theory in cosmological spacetimes