Improved regularization from Quantum Reduced Loop Gravity

Emanuele Alesci; Francesco Cianfrani

Improved regularization from Quantum Reduced Loop Gravity

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arxiv 1604.02375 v1 pith:2HWB7SND submitted 2016-04-08 gr-qc

Emanuele Alesci , Francesco Cianfrani This is my paper · ORCID

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keywords loopquantumcosmologygravityimprovedreducedregularizationscheme

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abstract

The choice of the regularization scheme in Loop Quantum Cosmology (LQC) is crucial for the predicted phenomenology. We outline how the improved scheme can be naturally realized in Quantum Reduced Loop Gravity, describing the Universe as an ensemble of microstates labeled by different graphs. The new effective dynamics presents corrections to LQC, which do not significantly affect the bouncing scenario for the most relevant kinds of matter fields in cosmology $(w \leq 1)$.

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Quantum-reduced loop gravity: New perspectives on the kinematics and dynamics
gr-qc 2024-12 conditional novelty 5.0 of 10

The paper reformulates quantum-reduced loop gravity with a master constraint operator and finds that its single-node Hamiltonian matches the Bianchi I loop quantum cosmology Hamiltonian.

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