Simple fluid models for super-inflation in effective LQC and effects on   the CMB B-modes
  Loop quantum cosmology allows to replace the original singularity by a quantum bounce followed by a phase of fast expansion called super-inflation. In this paper, we use a simple analytic description of super-inflation using the equation of state of a fluid. We then derive the power spectrum of tensor perturbations produced. The effects on the B-mode polarization of the cosmological background radiation are discussed. For a large region of phase space, the spectrum should be distinguishable from the standard inflationary prediction for future observations. 
J. Ribassin, E. Huguet and K. Ganga
gr-qc astro-ph.CO hep-ph