2011/11/20 by J. Ribassin, Ribassin, J., E. Huguet +3
Physics and Astronomy · #Cosmology and Nongalactic Astrophysics (astro-ph.CO) #FOS: Physical sciences #General Relativity and Quantum Cosmology (gr-qc) #High Energy Physics - Phenomenology (hep-ph) #astro-ph.CO #gr-qc #hep-ph
paper · pdf · doi:10.48550/arxiv.1111.4661
8 pages, 15 figures
arxiv created 2011/11/20 · arxiv updated 2015/03/19
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.