Blue Spectral Inflation

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Dec 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002nmgm.meet.2003s&link_type=abstract

"THE NINTH MARCEL GROSSMANN MEETING On Recent Developments in Theoretical and Experimental General Relativity, Gravitation and R

Physics

Scientific paper

The next-to leading order in the slow-roll approximation of inflation is known1 to lead to the nonlinear equation 2C ɛ y2 ɛ '' - (3 ɛ + 1)y ɛ ' + ɛ 2 + ɛ + Δ = 0, of Stewart and Lyth2, where the energy density ɛ = ɛ(y) depends on y = H2, the squared Hubble expansion rate, C := - 2 + ln2 + γ ≃ -0.73, and Δ := (ns - 1)/2 denotes the deviation from the scale invariant Harrison-Zel'dovich spectrum ...

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