Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2007-01-04
Physics
High Energy Physics
High Energy Physics - Phenomenology
20 pages, 15 figures
Scientific paper
Quintessential inflation--in which a single scalar field plays the role of the inflaton and quintessence--from a sum of exponentials potential V = A (exp{5 phi}+exp{sqrt{2} phi}) or V = A (exp{5 phi}+exp{phi}) or a cosh potential V = 2A cosh(5 phi) is considered in the context of five-dimensional gravitation with standard model particles confined to our 3-brane. Reheating is accomplished via gravitational particle production and the universe undergoes a transition from primordial inflation to radiation domination well before big bang nucleosynthesis. The transition to an accelerating universe due to quintessence occurs near z = 1, as in LambdaCDM. Braneworld quintessential inflation can occur for potentials with or without a minimum, and with or without eternal acceleration and an event horizon. The low z behavior of the equation of state parameter w_phi provides a clear observable signal distinguishing quintessence from a cosmological constant.
No associations
LandOfFree
Braneworld Quintessential Inflation and Sum of Exponentials Potentials 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 Braneworld Quintessential Inflation and Sum of Exponentials Potentials, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Braneworld Quintessential Inflation and Sum of Exponentials Potentials will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-16220