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General dissipative coefficient in warm intermediate inflation in Loop Quantum Cosmology in light of Planck and BICEP2

Videla, Nelson; Herrera, Ramón; Olivares, Marco

In this paper, we study a warm intermediate inflationary model with a general form for the dissipative coefficient Γ(T, ϕ) = C_ϕT^m/ϕ^m-1 in the context of Loop Quantum Cosmology (LQC). We examine this model in the weak and strong dissipative regimes. In general, we discuss in great detail the characteristics of this …

BICEP2 constrains composite inflation

Channuie, Phongpichit

In light of BICEP2, we re-examine single field inflationary models in which the inflation is a composite state stemming from various four-dimensional strongly coupled theories. We study in the Einstein frame a set of cosmological parameters, the primordial spectral index n_s and tensor-to-scalar ratio r, predicted by such models. We conf…