Reconstructing large running-index inflaton potentials

Details Reconstructing large running-index inflaton potentials Reconstructing large running-index inflaton potentials

2004-04-21

arxiv.org/abs/astro-ph/0404419v2

Class.Quant.Grav. 21 (2004) 3223-3236

Astronomy and Astrophysics

Astrophysics

Final version to appear in Class. Quant. Grav. References added

Scientific paper

10.1088/0264-9381/21/13/008

Recent fits of cosmological parameters by the first year Wilkinson Microwave Anisotropy Probe (WMAP) measurement seem to favor a primordial scalar spectrum with a large varying index from blue to red. We use the inflationary flow equations to reconstruct large running-index inflaton potentials and comment on current status on the inflationary flow. We find previous negligence of higher order slow rolling contributions when using the flow equations would lead to unprecise results.

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