68 citations · 386 across the 15 of their papers we have counts for
20 papers · 1 filter
Dynamics of Biased Domain Walls and the Devaluation Mechanism
P. P. Avelino, C. J. A. P. Martins, L. Sousa
We study the evolution of biased domain walls in the early universe. We explicitly discuss the roles played by the surface tension and volume pressure in the evolution of the walls…
On the cosmological evolution of alpha and mu and the dynamics of dark energy
P. P. Avelino
We study the cosmological evolution of the fine structure constant, , and the proton-to-electron mass ratio, , in the context of a generic class of models where the g…
Clustering Properties of Dynamical Dark Energy Models
P. P. Avelino, L. M. G. Beca, C. J. A. P. Martins
We provide a generic but physically clear discussion of the clustering properties of dark energy models. We explicitly show that in quintessence-type models the dark energy fluctua…
Linear and non-Linear Instabilities in Unified Dark Energy Models
P. P. Avelino, L. M. G. beça, C. J. A. P. Martins
We revisit the paradigm of unified dark energy discussing in detail the averaging problem in this type of scenarios, highlighting the need for a full non-linear treatment. We also…
Scaling of cosmological domain wall networks with junctions
P. P. Avelino, C. J. A. P. Martins, J. Menezes +2
We describe the results of the largest and most accurate three-dimensional field theory simulations of domain wall networks with junctions. We consider a previously introduced clas…
Cosmic reionization constraints on the nature of cosmological perturbations
Pedro P. Avelino, Andrew R. Liddle
We study the reionization history of the Universe in cosmological models with non-Gaussian density fluctuations, taking them to have a renormalized probability distribution f…