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Scalar Perturbations in Inflationary Models Based on the Non-Linear Sigma Model

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Abstract

The inflationary models based on the non-linear sigma model with the self-coupling potential are considered. The slow-roll solutions for long-wavelength inhomogeneities in general two-component chiral models and diagonal three-component chiral model of a special case are obtained. Scalar perturbations are calculated for two examples.

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  1. Department of Physics, Ulyanovsk State University, Leo Tolstoy Street 42, Ulyanovsk, 432700, Russia

    N. A. Koshelev

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  1. N. A. Koshelev
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Koshelev, N.A. Scalar Perturbations in Inflationary Models Based on the Non-Linear Sigma Model. General Relativity and Gravitation 36, 1625–1640 (2004). https://doi.org/10.1023/B:GERG.0000032155.73372.0e

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  • DOI: https://doi.org/10.1023/B:GERG.0000032155.73372.0e

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