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, and Israel Quiros
Phys. Rev. D 67, 083501 – Published 17 April 2003
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Abstract

In this work we present a model of the universe in which dark energy is modeled explicitly 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 both string and quantum field theories. The predictions of this model for distance modulus of supernovae are similar to those of the standard ΛCDM model.

  • Received 9 July 2002

DOI:https://doi.org/10.1103/PhysRevD.67.083501

©2003 American Physical Society

Authors & Affiliations

Rolando Cardenas*, Tame Gonzalez, Yoelsy Leiva, Osmel Martin§, and Israel Quiros

  • Departamento de Fisica, Universidad Central de Las Villas, Santa Clara, CP, 54830 Villa Clara, Cuba

  • *Electronic address: rcardenas@mfc.uclv.edu.cu
  • Electronic address: tame@mfc.uclv.edu.cu
  • Electronic address: yoelsy@mfc.uclv.edu.cu
  • §Electronic address: osmel@mfc.uclv.edu.cu
  • Electronic address: israel@mfc.uclv.edu.cu

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Issue

Vol. 67, Iss. 8 — 15 April 2003

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