Modelling dark energy with quintessence and a cosmological constant

Details Modelling dark energy with quintessence and a cosmological constant Modelling dark energy with quintessence and a cosmological constant

2002-09-25

arxiv.org/abs/astro-ph/0209524v1

Astronomy and Astrophysics

Astrophysics

Talk presented by R Cardenas in UK Cosmology Meeting at the University of Wales Swansea, September 2nd-4th, 2002

Scientific paper

In this talk 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 collapsing universe (for a given region of the parameter space), which is advantageous for an adequate formulation 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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