Transport equations for the inflationary spectral index

Details Transport equations for the inflationary spectral index Transport equations for the inflationary spectral index

2011-11-28

arxiv.org/abs/1111.6544v2

Phys.Rev.D85,043519(2012)

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

6 pages; minor changes to match published version

Scientific paper

10.1103/PhysRevD.85.043519

We present a simple and efficient method to compute the superhorizon
evolution of the spectral index in multi-field inflationary models, using
transport equation techniques. We illustrate the evolution of n_s with time for
various interesting potentials.

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