On the one loop corrections to inflation and the CMB anisotropies

Details On the one loop corrections to inflation and the CMB anisotropies On the one loop corrections to inflation and the CMB anisotropies

2006-04-24

arxiv.org/abs/astro-ph/0604488v2

Nucl.Phys. B748 (2006) 149-169

Astronomy and Astrophysics

Astrophysics

23 pages, 6 figures. Typos corrected, references added

Scientific paper

10.1016/j.nuclphysb.2006.04.029

We investigate the one loop effective potential of inflation in a standard model of chaotic inflation. The leading one loop corrections to the effective inflaton potential are evaluated in the quasi de Sitter background, and we estimate the one loop correction to the two-point function of the inflaton perturbations in the Hartree approximation. In this approximation, the one loop corrections depends on the total number of e-foldings of inflation and the maximal effect is estimated to be a correction to the power spectrum of a few percent. However, such a correction may be difficult to disentangle from the background in the simplest scenario.

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