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Novel couplings between nonmetricity and matter
Department of Physics, Babes-Bolyai University, Kogalniceanu Street, Cluj-Napoca 400084, Romania, Kogalniceanu Street; Department of Mathematics, University College London, Gower Street, London WC1E 6BT, United Kingdom, Gower Street.
KTH, Centres, Nordic Institute for Theoretical Physics NORDITA. Nordita, KTH Royal Institute of Technology and Stockholm University, Roslagstullsbacken 23, 10691 Stockholm, Sweden, Roslagstullsbacken 23.ORCID iD: 0000-0002-9403-8565
Departamento de Física Teórica and IFIC, Centro Mixto Universidad de Valencia - CSIC. Universidad de Valencia, Burjassot-46100, Valencia, Spain.
Instituto de Astrofísica e Ciências do Espaco, Faculdade de Ciências da Universidade de Lisboa, Edifício C8, Campo Grande, P-1749-016 Lisbon, Portugal, Edifício C8.
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2022 (English)In: 15th Marcel Grossmann Meeting on Recent Developments in Theoretical and Experimental General Relativity, Astrophysics, and Relativistic Field Theories, MG 2018, World Scientific Publishing , 2022Conference paper, Published paper (Refereed)
Abstract [en]

We present a novel theory of gravity, namely, an extension of symmetric teleparallel gravity. This is done by introducing a new class of theories where the nonmetricity Q is coupled nonminimally to the matter Lagrangian. This nonminimal coupling entails the nonconservation of the energy-momentum tensor, and consequently the appearance of an extra force. We also present several cosmological applications.
Place, publisher, year, edition, pages
World Scientific Publishing , 2022.
Keywords [en]
LATEX, MG14 Proceedings, Sample file, World Scientific Publishing
National Category
Astronomy, Astrophysics and Cosmology
Identifiers
URN: urn:nbn:se:kth:diva-351766Scopus ID: 2-s2.0-85199488756OAI: oai:DiVA.org:kth-351766DiVA, id: diva2:1888733
Conference
15th Marcel Grossmann Meeting on Recent Developments in Theoretical and Experimental General Relativity, Astrophysics, and Relativistic Field Theories, MG 2018, Rome, Italy, Jul 1 2018 - Jul 7 2018
Note

QC 20240823

Available from: 2024-08-13 Created: 2024-08-13 Last updated: 2024-08-23Bibliographically approved

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Koivisto, Tomi

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