A Model of the Universe including dark Energy

Details A Model of the Universe including dark Energy A Model of the Universe including dark Energy

2002-10-04

arxiv.org/abs/astro-ph/0210108v1

Astronomy and Astrophysics

Astrophysics

11 pages, 4 ps figures. Based, largely, in the talk presented by R Cardenas in the IX Simposium of the Cuban Physical Society,

Scientific paper

In this work we explore a model of the universe in which dark energy is modelled explicitely with both a dynamical quintessence field (with a double exponential self-interaction potential) and a cosmological constant. For a given region of the parameter space, our results confirm the possibility of a collapsing universe, which is necessary for an adequate definition of both perturbative quantum field and string theories. We have also reproduced the measurements of modulus distance from supernovae with good accuracy.

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