activity
20202022
most citedWell-posedness of the four-derivative scalar-tensor theory of gravity in singularity avoiding coordinates

56 citations · 108 across the 5 of their papers we have counts for

collaborators

6 papers

gr-qc2022★ 1 cited

An analytic formula to calculate the reheating temperature via gravitational particle production

Jaume de Haro, Llibert Aresté Saló

We present for smooth non-oscillating backgrounds an analytic formula which calculates the energy density of massive and massless particles created via gravitational particle produ…

gr-qc2022★ 56 cited

Well-posedness of the four-derivative scalar-tensor theory of gravity in singularity avoiding coordinates

Llibert Aresté Saló, Katy Clough, Pau Figueras

We show that the most general scalar-tensor theory of gravity up to four derivatives in dimensions is well-posed in a modified version of the CCZ4 formulation of the Einstein…

gr-qc2022

The problem of calculating the -Bogoliubov coefficient in Non-Oscillating models

Jaume de Haro, Llibert Aresté Saló

The calculation of the Bogoliubov coefficients is a key piece to obtain the reheating temperature of the Universe. In all cases this calculation is performed either in toy models w…

gr-qc2021★ 1 cited

Gravitational particle production of superheavy massive particles in Quintessential Inflation II: -attractors

Llibert Aresté Saló, Jaume de Haro

We compute the gravitational production of conformally coupled superheavy particles during the phase transition from the end of inflation to the beginning of kination for -attra…

gr-qc2021★ 50 cited

A review of Quintessential Inflation

Jaume de Haro, Llibert Aresté Saló

We compute numerically the reheating temperature due to the gravitational production of conformally coupled superheavy particles during the phase transition from the end of inflati…

gr-qc2020

The spectrum of Gravitational Waves, their overproduction in quintessential inflation and its influence in the reheating temperature

Jaume Haro, Llibert Aresté Saló

One of the most important issues in an inflationary theory as standard or quintessential inflation is the mechanism to reheat the universe after the end of the inflationary period…