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arXiv · 1701.07934

G-Warm inflation

Ramon Herrera
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Abstract

A warm inflationary universe in the context of Galileon model or G-model is studied. Under a general formalism we study the inflationary dynamics and the cosmological perturbations considering a coupling of the form $G(\phi,X)=g(\phi)\,X$. As a concrete example, we consider an exponential potential together with the cases in which the dissipation and Galilean coefficients are constants. Also, we study the weak regime given by the condition $R<1+3gH\dot{\phi}$, and the strong regime in which $1 H$, the conditions for the weak and strong regimes, together with the consistency relation $r=r(n_s)$ from Planck data.

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Ramon Herrera. 2017-01-27. G-Warm inflation. https://doi.org/10.1088/1475-7516%2F2017%2F05%2F029

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