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Thermodynamical properties of metric fluctuations during inflation

Mauricio Bellini
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Abstract

I study a thermodynamical approach to scalar metric perturbations during the inflationary stage. In the power-law expanding universe here studied, I find a negative heat capacity as a manifestation of superexponential growing for the number of states in super Hubble scales. The power spectrum depends on the Gibbons-Hawking and Hagedorn temperatures.

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Mauricio Bellini. 2002-02-20. Thermodynamical properties of metric fluctuations during inflation. https://doi.org/10.1023/a%3A1020728004921

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