Big Bounce in Dipole Cosmology

Abstract

We derive the cosmological Big Bounce scenario from the dipole approximation of Loop Quantum Gravity. We show that a non-singular evolution takes place for any matter field and that, by considering a massless scalar field as a relational clock for the dynamics, the semi-classical proprieties of an initial state are preserved on the other side of the bounce. This model thus enhances the relation between Loop Quantum Cosmology and the full theory.

5 pages

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Cited by in corpus (10)

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• 2-vertex Lorentzian Spin Foam Amplitudes for Dipole Transitions
• Learning about Quantum Gravity with a Couple of Nodes
• The Raychaudhuri equation for a quantized timelike geodesic congruence
• Coherent states for FLRW space-times in loop quantum gravity
• Quantum no-singularity theorem from geometric flows
• Bouncing universe with modified dispersion relation
• Large-scale asymmetry in the distribution of galaxy spin directions -- analysis and reproduction
• No evidence for anisotropy in galaxy spin directions
• Exponential correction to Friedmann equations