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.

arXiv comment9 pagaes, 6 figures

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Cited by in corpus (17)

• Detailed investigation of the duration of inflation in loop quantum cosmology for a Bianchi-I universe with different inflaton potentials and initial conditions
• An Overview on the Nature of the Bounce in LQC and PQM
• Some Clarifications on the Duration of Inflation in Loop Quantum Cosmology
• Preinflationary dynamics of $\alpha -$attractor in loop quantum cosmology
• Some conceptual issues in loop quantum cosmology
• Scalar spectra of primordial perturbations in loop quantum cosmology
• Phenomenology of Quantum Reduced Loop Gravity in the isotropic cosmological sector
• 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
• Loop quantum gravity and observations