Astronomy and Astrophysics – Astrophysics
Scientific paper
2001-06-20
Phys.Rev. D65 (2002) 063502
Astronomy and Astrophysics
Astrophysics
11 pages, 3 figures, PRD vol 65 (002) in press
Scientific paper
10.1103/PhysRevD.65.063502
Recently, attempts have been made to understand the apparent near coincidence of the present dark energy and matter energy in terms of a dynamical attractor-like solution for the evolution of a scalar field. In these models the field couples with the dominant constituent and only acts like a cosmological constant after the onset of the matter-diminated epoch. A generic feature of such solutions, however, is the possibility of significant energy density in the scalar field during the radiation-dominated epoch. This possibility is even greater if the quintessence field begins in a kinetic-dominated regime generated at the end of quintessential inflation. As such, these models can affect and be constrained by primordial nucleosynthesis and the epoch of of photon decoupling. Here, we analyze one popular form of the quintessence field (with and without a supergravity correction) and quantify constraints on the allowed initial conditions and parameters for the effective potential. We also deduce constraints on the epoch of matter creation at the end of quintessential inflation.
Ichiki Kiyotomo
Kajino Taka
Mathews Grant J.
Orito Manabu
Yahiro Masanobu
No associations
LandOfFree
Constraints on Cosmic Quintessence and Quintessential Inflation does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Constraints on Cosmic Quintessence and Quintessential Inflation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Constraints on Cosmic Quintessence and Quintessential Inflation will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-517172