Astronomy and Astrophysics – Astrophysics
Scientific paper
2000-12-07
Astronomy and Astrophysics
Astrophysics
4 pages, 2 figures, to appear in the proceedings of the CAPP2000, eds. Ruth Durrer, Juan Garcia-Bellido, and Mikhail Shaposhni
Scientific paper
10.1063/1.1363575
Assuming the space dimension is not constant but decreases during the expansion of the Universe, we study chaotic inflation with the potential $m^2 \phi^2/2$. We write down field equations in the slow-roll approximation and define slow -roll parameters by assuming the space dimension to be a dynamical parameter. The dynamical character of the space dimension shifts the initial and final value of the inflaton field to larger values, producing delayed chaotic inflation. We obtain an upper limit for the space dimension at the Planck length. This result is in agreement with previous works on the effective time variation of the Newtonian gravitational constant in a model Universe with variable space dimensions. We present some cosmological consequences and calculate observable quantities including the spectral indices, their scale-dependence, and the mass of the inflaton field.
Nasseri Forough
Rahvar Sohrab
No associations
LandOfFree
Chaotic Inflation with Variable Space Dimensions 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 Chaotic Inflation with Variable Space Dimensions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Chaotic Inflation with Variable Space Dimensions will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-579009