Chaplygin inflation in loop quantum cosmology

Details Chaplygin inflation in loop quantum cosmology Chaplygin inflation in loop quantum cosmology

2009-02-05

arxiv.org/abs/0902.0928v1

Mod.Phys.Lett.A24:1763-1773,2009

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

6 pages, accepted for publication in Mod. Phys. Lett. A

Scientific paper

10.1142/S0217732309030436

In this paper we discuss the inflationary universe in the context of a Chaplygin gas equation of state within the framework of the effective theory of loop quantum cosmology. Under the slow-roll approximation, we calculate the primordial perturbations for this model. We give the general expressions of the scalar spectral index, its running, and the tensor-to-scalar ratio, etc. For the chaotic inflation with a quadratic potential, using the WMAP 5-year results, we determine the parameters of the Chaplygin inflation model in loop quantum cosmology. The results are consistent with the WMAP observations.

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