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摘要
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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 phi, and the strong regime in which 1 < R+ 3gH phi. Additionally, we obtain constraints on the parameters during the evolution of G-warm inflation, assuming the condition for warm inflation in which the temperature T > H, the conditions or the weak and strong regimes, together with the consistency relation r = r(n(s)) from Planck data.
Keyword:
alternatives to inflation
cosmology of theories beyond the SM
inflation
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期刊
IF:
5.9
论文数:
1.3W
被引数:
4.7W
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