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Emergence of Riemannian geometry and the massive graviton

We overview a new mechanism whereby classical Riemannian geometry emerges out of the differential structure on quantum spacetime, as extension data for the classical algebra of differential forms. Outcomes for physics include a new formula for the standard Levi-Civita connection, a new point of view...

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Autor principal: Majid, Shahn
Lenguaje:eng
Publicado: 2013
Materias:
Acceso en línea:https://dx.doi.org/10.1051/epjconf/20147100080
http://cds.cern.ch/record/1640869
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author Majid, Shahn
author_facet Majid, Shahn
author_sort Majid, Shahn
collection CERN
description We overview a new mechanism whereby classical Riemannian geometry emerges out of the differential structure on quantum spacetime, as extension data for the classical algebra of differential forms. Outcomes for physics include a new formula for the standard Levi-Civita connection, a new point of view of the cosmological constant as a very small mass for the graviton of around $10^{-33}$ev, and a weakening of metric-compatibility in the presence of torsion. The same mechanism also provides a new construction for quantum bimodule connections on quantum spacetimes and a new approach to the quantum Ricci tensor.
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institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2013
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spelling cern-16408692022-08-10T20:07:16Zdoi:10.1051/epjconf/20147100080http://cds.cern.ch/record/1640869engMajid, ShahnEmergence of Riemannian geometry and the massive gravitonGeneral Relativity and CosmologyWe overview a new mechanism whereby classical Riemannian geometry emerges out of the differential structure on quantum spacetime, as extension data for the classical algebra of differential forms. Outcomes for physics include a new formula for the standard Levi-Civita connection, a new point of view of the cosmological constant as a very small mass for the graviton of around $10^{-33}$ev, and a weakening of metric-compatibility in the presence of torsion. The same mechanism also provides a new construction for quantum bimodule connections on quantum spacetimes and a new approach to the quantum Ricci tensor.arXiv:1401.0673oai:cds.cern.ch:16408692013-12-31
spellingShingle General Relativity and Cosmology
Majid, Shahn
Emergence of Riemannian geometry and the massive graviton
title Emergence of Riemannian geometry and the massive graviton
title_full Emergence of Riemannian geometry and the massive graviton
title_fullStr Emergence of Riemannian geometry and the massive graviton
title_full_unstemmed Emergence of Riemannian geometry and the massive graviton
title_short Emergence of Riemannian geometry and the massive graviton
title_sort emergence of riemannian geometry and the massive graviton
topic General Relativity and Cosmology
url https://dx.doi.org/10.1051/epjconf/20147100080
http://cds.cern.ch/record/1640869
work_keys_str_mv AT majidshahn emergenceofriemanniangeometryandthemassivegraviton