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Spin-foam model for gravity coupled to massless scalar field

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arxiv 1807.06098 v1 pith:ZGNHLY2Z submitted 2018-07-16 gr-qc

Marcin Kisielowski , Jerzy Lewandowski This is my paper · ORCID
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keywords modelcoupledfieldgravityhendersonloopmasslessquantum
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A spin-foam model is derived from the canonical model of Loop Quantum Gravity coupled to a massless scalar field. We generalized to the full theory the scheme first proposed in the context of Loop Quantum Cosmology by Ashtekar, Campiglia and Henderson, later developed by Henderson, Rovelli, Vidotto and Wilson-Ewing.

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  1. (2+1) Lorentzian quantum cosmology from spin-foams: opportunities and obstacles for semi-classicality

    gr-qc 2024-11 conditional novelty 6.0 of 10

    A 2+1 Lorentzian spin-foam cosmology model with a Hessian-derived measure and a massive scalar field yields convergent partition functions, with semi-classical expectation values only in the causally regular sector an...

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