Linear and non-linear perturbations in dark energy models

Nov, 2003
12 pages
Published in:
  • Phys.Rev.D 69 (2004) 103524
e-Print:

Citations per year

20032009201520212025051015
Abstract: (arXiv)
I review the linear and second-order perturbation theory in dark energy models with explicit interaction to matter in view of applications to N-body simulations and non-linear phenomena. Several new or generalized results are obtained: the general equations for the linear perturbation growth: an analytical expression for the bias induced by a species-dependent interaction: the Yukawa correction to the gravitational potential due to dark energy interaction: the second-order perturbation equations in coupled dark energy and their Newtonian limit. I also show that a density-dependent effective dark energy mass arises if the dark energy coupling is varying.
  • 98.80.Cq
  • dark energy
  • perturbation: linear
  • perturbation: nonlinear
  • gravitation: potential
  • correction: Yukawa
  • field theory: scalar