Warm-viscous inflation model on the brane in the light of BICEP2

Understand

In the present work warm inflationary universe model with viscous pressure on the brane in high-dissipation regime is studied.

• We derive a condition which is required for this model to be realizable in slow-roll approximation.
• We also present analytic expressions for density perturbation and amplitude of tensor perturbation in longitudinal gauge.
• General expressions of tensor-to-scalar ratio, scalar spectral index and its running are obtained.