Cosmic evolution with early and late acceleration inspired by dual nature of the ricci scalar curvature

Feb, 2006
24 pages
Published in:
  • Int.J.Mod.Phys.D 17 (2008) 755-784
e-Print:

Citations per year

200520072009201120131520
Abstract: (arXiv)
In the present paper, it is found that dark energy emerges spontaneously from the modified gravity. According to cosmological scenario, obtained here, the universe inflates for 1037\sim 10^{-37} sec. in the beginning and late universe accelerates after 8.58 Gyrs. During the long intermediate period, it decelerates driven by radiation and subsequently by matter. Emerged gravitational dark energy mimics quintessence and its density falls by 115 orders from its initial value 2.58×1068GeV42.58\times 10^{68} {\rm GeV}^4 to its current value 2.19×1047GeV42.19\times 10^{-47} {\rm GeV}^4 .
  • 98.80.Hw
  • 98.80.-k
  • 98.80.Cq
  • expansion: acceleration
  • dark energy
  • gravitation: action
  • derivative: high
  • inflation
  • field theory: scalar
  • dark matter