Ghost-free higher-order theories of gravity with torsion

Abstract In this manuscript we will present the theoretical framework of the recently proposed infinite derivative theory of gravity with a non-symmetric connection. We will explicitly derive the field equations at the linear level and obtain new solutions with a non-trivial form of the torsion tens...

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Main Authors: Álvaro de la Cruz-Dombriz, Francisco José Maldonado Torralba, Anupam Mazumdar
Format: Article
Language:English
Published: SpringerOpen 2021-03-01
Series:European Physical Journal C: Particles and Fields
Online Access:https://doi.org/10.1140/epjc/s10052-021-09019-6
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author Álvaro de la Cruz-Dombriz
Francisco José Maldonado Torralba
Anupam Mazumdar
author_facet Álvaro de la Cruz-Dombriz
Francisco José Maldonado Torralba
Anupam Mazumdar
author_sort Álvaro de la Cruz-Dombriz
collection DOAJ
description Abstract In this manuscript we will present the theoretical framework of the recently proposed infinite derivative theory of gravity with a non-symmetric connection. We will explicitly derive the field equations at the linear level and obtain new solutions with a non-trivial form of the torsion tensor in the presence of a fermionic source, and show that these solutions are both ghost and singularity-free.
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spelling doaj.art-8345abd31f8f4d109229af4eda71b07e2022-12-21T18:18:19ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60441434-60522021-03-0181311310.1140/epjc/s10052-021-09019-6Ghost-free higher-order theories of gravity with torsionÁlvaro de la Cruz-Dombriz0Francisco José Maldonado Torralba1Anupam Mazumdar2Cosmology and Gravity Group, Department of Mathematics and Applied Mathematics, University of Cape TownCosmology and Gravity Group, Department of Mathematics and Applied Mathematics, University of Cape TownVan Swinderen Institute, University of GroningenAbstract In this manuscript we will present the theoretical framework of the recently proposed infinite derivative theory of gravity with a non-symmetric connection. We will explicitly derive the field equations at the linear level and obtain new solutions with a non-trivial form of the torsion tensor in the presence of a fermionic source, and show that these solutions are both ghost and singularity-free.https://doi.org/10.1140/epjc/s10052-021-09019-6
spellingShingle Álvaro de la Cruz-Dombriz
Francisco José Maldonado Torralba
Anupam Mazumdar
Ghost-free higher-order theories of gravity with torsion
European Physical Journal C: Particles and Fields
title Ghost-free higher-order theories of gravity with torsion
title_full Ghost-free higher-order theories of gravity with torsion
title_fullStr Ghost-free higher-order theories of gravity with torsion
title_full_unstemmed Ghost-free higher-order theories of gravity with torsion
title_short Ghost-free higher-order theories of gravity with torsion
title_sort ghost free higher order theories of gravity with torsion
url https://doi.org/10.1140/epjc/s10052-021-09019-6
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