370 citations · 1.3k across the 27 of their papers we have counts for
27 papers
CosmoLattice 2.0
Jorge Baeza-Ballesteros, Daniel G. Figueroa, Adrien Florio +4
This paper introduces , a major upgrade that substantially broadens the physical scope and computational capabilities of the code…
Biased Domain Wall Networks and their Gravitational Waves
Davide Barbini, Alessio Notari, Oriol Pujolàs +2
Cosmic Domain Wall networks are among the most interesting sources of a stochastic Gravitational Wave (GW) background from the early Universe. We present a thorough analysis of the…
The art of simulating the early Universe. Part II. Non-canonical cases & gravitational waves
Jorge Baeza-Ballesteros, Daniel G. Figueroa, Adrien Florio +7
We present a discussion on lattice techniques for the simulation of non-canonical field theory circumstances, complementing our previous monograph (arXiv:2006.15122) on canonical c…
Equation of state during (p)reheating with trilinear interactions
Stefan Antusch, Kenneth Marschall, Francisco Torrenti
We characterize the post-inflationary evolution of the equation of state of the universe from the end of inflation until the onset of radiation domination, when the inflaton is cou…
The Spectrum of Gravitational Waves from Annihilating Domain Walls
Alessio Notari, Fabrizio Rompineve, Francisco Torrenti
Networks of cosmic domain walls can form in the early Universe as a consequence of the spontaneous breaking of discrete symmetries. We study the production of a cosmological backgr…
Ephemeral Oscillons in Scalar-Tensor Theories: The Higgs-like case
Matteo Piani, Javier Rubio, Francisco Torrenti
We investigate the post-inflationary evolution of a non-minimally coupled inflaton field in scalar-tensor theories, framed within the flexible framework of Einstein-Cartan gravity.…
Challenges and Opportunities of Gravitational Wave Searches above 10 kHz
Nancy Aggarwal, Odylio D. Aguiar, Diego Blas +34
The first direct measurement of gravitational waves by the LIGO and Virgo collaborations has opened up new avenues to explore our Universe. This white paper outlines the challenges…
Present and future of CosmoLattice
Daniel G. Figueroa, Adrien Florio, Francisco Torrenti
We discuss the present state and planned updates of CosmoLattice, a cutting-edge code for lattice simulations of non-linear dynamics of scalar-gauge field theories in an expanding…
Physical scale adiabatic regularization in cosmological spacetimes
Antonio Ferreiro, Samuel Monin, Francisco Torrenti
We develop a new regularization method for the stress-energy tensor and the two-point function of free quantum scalar fields propagating in cosmological spacetimes. We proceed by e…
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…
Characterizing the post-inflationary reheating history, Part II: Multiple interacting daughter fields
Stefan Antusch, Kenneth Marschall, Francisco Torrenti
We characterize the post-inflationary dynamics of an inflaton coupled to multiple interacting daughter fields () through quadratic-quadratic interactions $…
Characterizing the post-inflationary reheating history, Part I: single daughter field with quadratic-quadratic interaction
Stefan Antusch, Daniel G. Figueroa, Kenneth Marschall +1
We study the evolution of the energy distribution and equation of state of the Universe from the end of inflation until the onset of either radiation domination (RD) or a transient…
CosmoLattice
Daniel G. Figueroa, Adrien Florio, Francisco Torrenti +1
This is the user manual for CosmoLattice, a modern package for lattice simulations of the dynamics of interacting scalar and gauge fields in an expanding universe. CosmoLattice inc…
Challenges and Opportunities of Gravitational Wave Searches at MHz to GHz Frequencies
N. Aggarwal, O. D. Aguiar, A. Bauswein +22
The first direct measurement of gravitational waves by the LIGO and Virgo collaborations has opened up new avenues to explore our Universe. This white paper outlines the challenges…
The art of simulating the early Universe -- Part I
Daniel G. Figueroa, Adrien Florio, Francisco Torrenti +1
We present a comprehensive discussion on lattice techniques for the simulation of scalar and gauge field dynamics in an expanding universe. After reviewing the continuum formulatio…
Energy distribution and equation of state of the early Universe: matching the end of inflation and the onset of radiation domination
Stefan Antusch, Daniel G. Figueroa, Kenneth Marschall +1
We study the energy distribution and equation of state of the universe between the end of inflation and the onset of radiation domination (RD), considering observationally consiste…
Properties of oscillons in hilltop potentials: energies, shapes, and lifetimes
Stefan Antusch, Francesco Cefala, Francisco Torrenti
Oscillons are spatially localised strong fluctuations of a scalar field. They can e.g. form after inflation when the scalar field potential is shallower than quadratic away from th…
Adiabatic regularization with a Yukawa interaction
Antonio Ferreiro, Adrian del Rio, Jose Navarro-Salas +2
We extend the adiabatic regularization method for an expanding universe to include the Yukawa interaction between a quantized Dirac field and a homogeneous time-dependent scalar fi…
Higgs-curvature coupling and post-inflationary vacuum instability
Daniel G. Figueroa, Arttu Rajantie, Francisco Torrenti
We study the post-inflationary dynamics of the Standard Model (SM) Higgs field in the presence of a non-minimal coupling to gravity, both with and without the electroweak…
Gravitational wave production from preheating: parameter dependence
Daniel G. Figueroa, Francisco Torrenti
Parametric resonance is among the most efficient phenomena generating gravitational waves (GWs) in the early Universe. The dynamics of parametric resonance, and hence of the GWs, d…
Adiabatic regularization with a Yukawa interaction
A. del Rio, A. Ferreiro, J. Navarro-Salas +1
We extend the adiabatic regularization method for an expanding universe to include the Yukawa interaction between quantized Dirac fermions and a homogeneous background scalar field…
Parametric Resonance in the Early Universe - A Fitting Analysis
Daniel G. Figueroa, Francisco Torrenti
Particle production via parametric resonance in the early Universe, is a nonperturbative, non-linear and out-of-equilibrium phenomenon. Although it is a well studied topic, wheneve…
Gravitational wave production from the decay of the Standard Model Higgs field after inflation
Daniel G. Figueroa, Juan García-Bellido, Francisco Torrentí
During or towards the end of inflation, the Standard Model (SM) Higgs forms a condensate with a large amplitude. Following inflation, the condensate oscillates, decaying non-pertur…
The Decay of the Standard Model Higgs after Inflation
Daniel G. Figueroa, Juan Garcia-Bellido, Francisco Torrenti
We study the nonperturbative dynamics of the Standard Model (SM) after inflation, in the regime where the SM is decoupled from (or weakly coupled to) the inflationary sector. We us…