Exhaustive investigation of the duration of inflation in effective anisotropic loop quantum cosmology

Abstract

This article addresses the issue of estimating the duration in inflation in bouncing cosmology when anisotropies, inevitably playing an important role, are taken into account. It is shown that in Bianchi-I loop quantum cosmology, the higher the shear, the shorter the period of inflation. In a range of parameters, the probability distribution function of the duration of inflation is however peaked at values compatible with data, but not much higher. This makes the whole bounce/inflationary scenario consistent and phenomenologically appealing as all the information from the bounce might then not have been fully washed out.

9 pagaes, 6 figures

References in corpus (8)

• Loop Quantum Cosmology: An Overview
• Loop Quantization of Vacuum Bianchi I Cosmology
• Physical evolution in Loop Quantum Cosmology: The example of vacuum Bianchi I
• Loop Quantum Cosmology in Bianchi Type I Models: Analytical Investigation
• The behavior of non-linear anisotropies in bouncing Bianchi I models of loop quantum cosmology
• Effective Dynamics, Big Bounces and Scaling Symmetry in Bianchi Type I Loop Quantum Cosmology
• Loop Quantum Cosmology of Diagonal Bianchi Type I model: simplifications and scaling problems
• Bianchi I model in terms of nonstandard loop quantum cosmology: Quantum dynamics

Cited by in corpus (10)

• An Overview on the Nature of the Bounce in LQC and PQM
• Warm bounce in loop quantum cosmology and the prediction for the duration of inflation
• Unavoidable shear from quantum fluctuations in contracting cosmologies
• Constraining the Barbero-Immirzi parameter from the duration of inflation in loop quantum cosmology
• A pure general relativistic non-singular bouncing origin for the Universe
• Cosmological implications of generalized holonomy corrections
• Impact of generalized holonomy corrections on the cosmological primordial power spectra
• $\alpha$-attractor potentials in loop quantum cosmology
• Quantum geometric formulation of Brans-Dicke theory for Bianchi I spacetime
• Ekpyrosis in Quantum Gravitational Anisotropic Bouncing Models