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Dark Energy Cosmology with Spinor Field

Abstract

Recent observations have shown that our universe is currently undergoing a period of accelerating expansion. In view of the astrophysical data we find that the equation of state of the dark energy lies in a narrow range around w = −1. In this paper we discuss the possibility of treating a spinor field as dark energy to realize the equation of state parameter w < −1 or w > −1. We derive the main equations which govern the evolution of the universe and then discuss the evolution and attractor property of this model, and show a late time de Sitter attractor. Finally we rewrite them with the observable quantities.

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Correspondence to You-Gen Shen.

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Sun, ZY., Shen, YG. Dark Energy Cosmology with Spinor Field. Int J Theor Phys (2006). https://doi.org/10.1007/s10773-006-9128-x

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  • DOI: https://doi.org/10.1007/s10773-006-9128-x

Keywords

  • cosmology
  • dark energy
  • spinor field