Warm Inflation and Scalar Perturbations of the Metric |
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| Authors: | Mauricio Bellini |
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| Institution: | (1) Departamento de Fí sica, Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Mar del Plata, Funes 3350, (7600) Mar del Plata, Buenos Aires, Argentina |
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| Abstract: | A second-order expansion for the quantum fluctuations of the matter field was considered in the framework of the warm inflation scenario. The friction and Hubble parameters were expanded by means of a semiclassical approach. The fluctuations of the Hubble parameter generates fluctuations of the metric. These metric fluctuations produce an effective term of curvature. The power spectrum for the metric fluctuations can be calculated on the infrared sector. |
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| Keywords: | Inflationary cosmology quantum fluctuations |
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