Chaplygin inflation in loop quantum cosmology

Abstract

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.

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

References in corpus (8)

• Quantum Nature of the Big Bang: Improved dynamics
• Generalized Chaplygin gas model: constraints from Hubble parameter versus Redshift Data
• Holographic dark energy in a cyclic universe
• Phantom field dynamics in loop quantum cosmology
• Oscillating universe with quintom matter
• Dynamics of Quintom and Hessence Energies in Loop Quantum Cosmology
• Tachyon-Chaplygin inflationary universe model
• Can black holes be torn up by phantom dark energy in cyclic cosmology?

Cited by in corpus (2)

• Evolution of Metric Perturbations in Quintom Bounce model
• Testing the (generalized) Chaplygin gas model with the Lookback time-Redshift data