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A covariant polymerized scalar field in loop quantum gravity

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arxiv 2102.09501 v2 pith:FAE74JM6 submitted 2021-02-18 gr-qc hep-th

Florencia Benítez , Rodolfo Gambini , Jorge Pullin This is my paper · ORCID
classification gr-qchep-th
keywords fieldsgravityscalaradvantageapproachescanonicalcomparecoupled
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We propose a new polymerization scheme for scalar fields coupled to gravity. It has the advantage of being a (non-bijective) canonical transformation of the fields and therefore ensures the covariance of the theory. We study it in detail in spherically symmetric situations and compare to other approaches.

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  1. Absorption spectrum and greybody factors of charged black holes in loop quantum gravity

    gr-qc 2026-08 conditional novelty 6.0 of 10

    The absorption cross section of massless scalar waves by a charged loop-quantum-gravity black hole increases with the quantum parameter in an intermediate frequency band, decreases with charge, and matches classical a...

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