A General Analytic Formula for the Spectral Index of the Density Perturbations produced during Inflation

Details A General Analytic Formula for the Spectral Index of the Density Perturbations produced during Inflation A General Analytic Formula for the Spectral Index of the Density Perturbations produced during Inflation

1995-07-03

arxiv.org/abs/astro-ph/9507001v2

Prog.Theor.Phys.95:71-78,1996

Astronomy and Astrophysics

Astrophysics

10 pages, more explanation and references added, version to be published in Progress of Theoretical Physics

Scientific paper

10.1143/PTP.95.71

The standard calculation of the spectrum of density perturbations produced during inflation assumes that there is only one real dynamical degree of freedom during inflation. However, there is no reason to believe that this is actually the case. In this paper we derive general analytic formulae for the spectrum and spectral index of the density perturbations produced during inflation.

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