4 papers
Bi-metric Universe with Matter
Carlos Maldonado, Fernando Mendez
We analyze the early stage of evolution of a universe with two scale factors proposed in [1] when matter is present. The scale factors describe two causally disconnected patches of…
Reconstructing Non-standard Cosmologies with Dark Matter
Paola Arias, Nicolás Bernal, Alan Herrera +1
Once dark matter has been discovered and its particle physics properties have been determined, a crucial question rises concerning how it was produced in the early Universe. If its…
Testing a new WISP Model with Laboratory Experiments
P. D. Alvarez, Paola Arias, Carlos Maldonado
We explore the phenomenological consequences of a model with axion-like particles and hidden photons mixing with photons. In this model, the hidden photon is directly coupled to th…
A two particle hidden sector and the oscillations with photons
Pedro Diego Alvarez, Paola Arias, Carlos Maldonado
We present a detailed study of the oscillations and optical properties for vacuum, in a model for the dark sector that contains axion-like particles and hidden photons. In this mod…