Holonomy corrections to the cosmological primordial tensor power spectrum

2008/05/03 by Aurélien Barrau, A. Barrau, Julien Grain +3 · 1 citation
Physics and Astronomy · #Astrophysics (astro-ph) #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #FOS: Physical sciences #General Relativity and Quantum Cosmology (gr-qc) #High Energy Physics - Phenomenology (hep-ph) #High Energy Physics - Theory (hep-th) #Noncommutative and Quantum Gravity Theories #astro-ph #gr-qc #hep-ph #hep-th

paper · pdf · doi:10.48550/arxiv.0805.0356

5 pages, Proc. of the 43rd Rencontres de Moriond "Cosmology 2008"

arxiv created 2008/05/03 · openalex publication_date 2008/05/03 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

Loop quantum gravity is one of the leading candidate theory to non-perturbatively quantize gravity. In this framework, holonomy corrections to the equation of propagation of gravitons in a FLRW background have been derived. We investigate the consequences of those corrections on the tensor power spectrum in de-Sitter and slow-roll inflations, for n=-1/2. Depending on the value of the Barbero-Immirzi parameter, several observational features could be expected.

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• Lemaitre-Tolman-Bondi collapse from the perspective of loop quantum gravity

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