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The European Physical Journal C

, Volume 55, Issue 1, pp 113–117 | Cite as

First-order formalism for dark energy and dust

  • D. BazeiaEmail author
  • L. Losano
  • J.J. Rodrigues
  • R. Rosenfeld
Regular Article - Theoretical Physics

Abstract

This work deals with a first-order formalism for dark energy and dust in standard cosmology, for models described by a real scalar field in the presence of dust in spatially flat space. The field dynamics may be standard or tachyonic, and we show how the equations of motion can be solved by first-order differential equations. We investigate a model to illustrate how the dustlike matter may affect the cosmic evolution using this framework.

Keywords

Dust Dark Energy Hubble Parameter Real Scalar Sami 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag / Società Italiana di Fisica 2008

Authors and Affiliations

  • D. Bazeia
    • 1
    Email author
  • L. Losano
    • 1
  • J.J. Rodrigues
    • 1
  • R. Rosenfeld
    • 2
  1. 1.Departamento de FísicaUniversidade Federal da ParaíbaJoão PessoaBrazil
  2. 2.Instituto de Física TeóricaUNESPSão PauloBrazil

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