Combinatorial Spacetime from Loop Quantum Gravity

Fuente: arXiv
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Autor principal: Altaisky, Mikhail
Formato: Preprint
Publicado: 2026
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author Altaisky, Mikhail
author_facet Altaisky, Mikhail
contents Loop quantum gravity is a perspective candidate for the quantum theory of gravity. However, there is a conceptual controversy in it: having started from the Einstein-Hilbert action and describing spacetime without matter, we can hardly define spacetime as anything other than a set of relations between matter fields. Here, following the Penrose idea of combinatorial spacetime we reformulate loop quantum gravity theory solely in terms of the matter fields.
format Preprint
id arxiv_https___arxiv_org_abs_2602_08341
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Combinatorial Spacetime from Loop Quantum Gravity
Altaisky, Mikhail
General Relativity and Quantum Cosmology
Loop quantum gravity is a perspective candidate for the quantum theory of gravity. However, there is a conceptual controversy in it: having started from the Einstein-Hilbert action and describing spacetime without matter, we can hardly define spacetime as anything other than a set of relations between matter fields. Here, following the Penrose idea of combinatorial spacetime we reformulate loop quantum gravity theory solely in terms of the matter fields.
title Combinatorial Spacetime from Loop Quantum Gravity
topic General Relativity and Quantum Cosmology
url https://arxiv.org/abs/2602.08341