359 citations · 1.2k across the 30 of their papers we have counts for
6 papers · 1 filter
Emission of gravitational waves by superconducting cosmic strings
I. Yu. Rybak, L. Sousa
We study the gravitational radiation emission efficiency of superconducting cosmic strings. We demonstrate, by using a solvable model of transonic strings, that the presence of…
Domain walls and other defects in Eddington-inspired Born-Infeld gravity
P. P. Avelino, L. Sousa
We investigate domain wall and other defect solutions in the weak-field limit of Eddington-inspired Born-Infeld gravity as a function of , the only additional parameter of the t…
Torsion braneworlds in a tensor-vector gravity
J. E. G. Silva, L. J. S. Sousa, W. T. Cruz +1
We study the properties of gravity and bulk fields living in a torsion warped braneworld. The torsion is driven by a background vector whose norm provides a source for the bulk cos…
Geometric standing wave braneworld and field localization in Lyra manifold
L. J. S. Sousa, J. E. G. Silva, W. T. Cruz +1
In this work, we propose a standing wave braneworld based on Lyra geometry scenario. The Lyra displacement vector provides a modification in Einstein equations which can be interpr…
Matter Lagrangian of particles and fluids
P. P. Avelino, L. Sousa
We consider a model where particles are described as localized concentrations of energy, with fixed rest mass and structure, which are not significantly affected by their self-indu…
Phantom Domain Walls
P. P. Avelino, V. M. C. Ferreira, J. Menezes +1
We consider a model with two real scalar fields which admits phantom domain wall solutions. We investigate the structure and evolution of these phantom domain walls in an expanding…