A model of the Universe including Dark Energy accounted for by both a Quintessence Field and a (negative) Cosmological Constant
Rolando Cardenas, Tame Gonzalez, Yoelsy Leiva, Osmel Martin, Israel Quiros
Abstract
In this work we present a model of the universe in which dark energy is modelled explicitely with both a dynamical quintessence field and a cosmological constant. Our results confirm the possibility of a future collapsing universe (for a given region of the parameter space), which is necessary for a consistent formulation of string theory and quantum field theory. We have also reproduced the measurements of modulus distance from supernovae with good accuracy.
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