5 papers
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)…
Closed inflationary universe with tachyonic field
Leonardo Balart, Sergio del Campo, Ramon Herrera +1
In this article we study closed inflationary universe models by using a tachyonic field theory. We determine and characterize the existence of an universe with , and which de…
Quark-Antiquark Bound States in an Extended QCD_2 Model
Pedro Labrana, Jorge Alfaro, Alexander A. Andrianov
We study an extended QCD model in 2D obtained from QCD in 4D by compactifying two spatial dimensions and projecting onto the zero-mode subspace. This system is found to induce a dy…