64 citations · 177 across the 6 of their papers we have counts for
4 papers · 1 filter
On the Stability of Jordan-Brans-Dicke Static Universe
Sergio del Campo, Ramon Herrera, Pedro Labrana
In this work we study the stability of the Jordan-Brans-Dicke (JBD) static universe. This is motivated by the possibility that the universe might have started out in an asymptotica…
Evolving Lorentzian wormholes supported by phantom matter with constant state parameters
Mauricio Cataldo, Pedro Labrana, Sergio del Campo +2
In this paper we study the possibility of sustaining an evolving wormhole via exotic matter made out of phantom energy. We show that this exotic source can support the existence of…
Emergent universe in a Jordan-Brans-Dicke theory
Sergio del Campo, Ramon Herrera, Pedro Labrana
In this paper we study emergent universe model in the context of a self interacting Jordan-Brans-Dicke theory. The model presents a stable past eternal static solution which eventu…
Tachyonic open inflationary universes
Leonardo Balart, Sergio del Campo, Ramon Herrera +2
We study one-field open inflationary models in a universe dominated by tachyon matter. In these scenarios, we determine and characterize the existence of the Coleman-De Lucia (CDL)…