540 citations · 2.6k across the 79 of their papers we have counts for
5 papers · 1 filter
BAO cosmography
Ruth Lazkoz, Jailson Alcaniz, Celia Escamilla-Rivera +2
Cosmography provides a model-independent way to map the expansion history of the Universe. In this paper we simulate a Euclid-like survey and explore cosmographic constraints from…
Scalar Field as a Bose-Einstein Condensate?
Elías Castellanos, Celia Escamilla-Rivera, Alfredo Macías +1
We discuss the analogy between a classical scalar field with a self-interacting potential, in a curved spacetime described by a quasi--bounded state, and a trapped Bose-Einstein co…
Interacting closed string tachyon with modified Chaplygin gas and its stability
Ali R. Amani, Celia Escamilla-Rivera, H. R. Faghani
In this paper, we have considered closed string tachyon model with a constant dilaton field and interacted it with Chaplygin gas for evaluating cosmology parameters. The model has…
The rise of a tensor instability in Eddington-inspired gravity
Celia Escamilla-Rivera, Maximo Banados, Pedro G. Ferreira
In this work an extension to Eddington's gravitational action is analyzed. We consider the tensor perturbations of a FLRW space-time in the Eddington regime in where the tensor mod…
The Closed String Tachyon and its relationship with the evolution of the Universe
Celia Escamilla-Rivera
We present a cosmological landscape where the classical closed string tachyon field plays an important role in the framework of a critical bosonic compactification. Our cosmologica…