Conventionalism, Cosmology and Teleparallel Gravity

Autor:	Laur Järv, Piret Kuusk
Jazyk:	angličtina
Rok vydání:	2023
Předmět:	philosophy of spacetime Friedmann cosmology teleparallel gravity symmetric teleparallel gravity Elementary particle physics QC793-793.5
Zdroj:	Universe, Vol 10, Iss 1, p 1 (2023)
Druh dokumentu:	article
ISSN:	2218-1997
DOI:	10.3390/universe10010001
Popis:	We consider homogeneous and isotropic cosmological models in the framework of three geometrical theories of gravitation. In Einstein’s general relativity, they are given in terms of the curvature of the Levi-Civita connection in torsion-free metric spacetimes; in the teleparallel equivalent of general relativity, they are given in terms of the torsion of flat metric spacetimes; and in the symmetric teleparallel equivalent of general relativity, they are given in terms of the nonmetricity of flat torsion-free spacetimes. We argue that although these three formulations seem to be different, the corresponding cosmological models are in fact equivalent and their choice is conventional.
Databáze:	Directory of Open Access Journals
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