Wormhole geometries in f(Q) gravity and the energy conditions

Abstract Following the recent theory of f(Q) gravity, we continue to investigate the possible existence of wormhole geometries, where Q is the non-metricity scalar. Recently, the non-metricity scalar and the corresponding field equations have been studied for some spherically symmetric configuration...

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Autores principales:	Ayan Banerjee, Anirudh Pradhan, Takol Tangphati, Farook Rahaman
Formato:	article
Lenguaje:	EN
Publicado:	SpringerOpen 2021
Materias:	Astrophysics QB460-466 Nuclear and particle physics. Atomic energy. Radioactivity QC770-798
Acceso en línea:	https://doaj.org/article/b3a44b2891b6491ea7f015e2f9988e4b
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spelling	oai:doaj.org-article:b3a44b2891b6491ea7f015e2f9988e4b2021-11-28T12:11:37ZWormhole geometries in f(Q) gravity and the energy conditions10.1140/epjc/s10052-021-09854-71434-60441434-6052https://doaj.org/article/b3a44b2891b6491ea7f015e2f9988e4b2021-11-01T00:00:00Zhttps://doi.org/10.1140/epjc/s10052-021-09854-7https://doaj.org/toc/1434-6044https://doaj.org/toc/1434-6052Abstract Following the recent theory of f(Q) gravity, we continue to investigate the possible existence of wormhole geometries, where Q is the non-metricity scalar. Recently, the non-metricity scalar and the corresponding field equations have been studied for some spherically symmetric configurations in Mustafa (Phys Lett B 821:136612, 2021) and Lin and Zhai (Phys Rev D 103:124001, 2021). One can note that field equations are different in these two studies. Following Lin and Zhai (2021), we systematically study the field equations for wormhole solutions and found the violation of null energy conditions in the throat neighborhood. More specifically, considering specific choices for the f(Q) form and for constant redshift with different shape functions, we present a class of solutions for static and spherically symmetric wormholes. Our survey indicates that wormhole solutions could not exist for specific form function $$f(Q)= Q+ \alpha Q^2$$ f ( Q ) = Q + α Q 2 . To summarize, exact wormhole models can be constructed with violation of the null energy condition throughout the spacetime while being $$\rho \ge 0$$ ρ ≥ 0 and vice versa.Ayan BanerjeeAnirudh PradhanTakol TangphatiFarook RahamanSpringerOpenarticleAstrophysicsQB460-466Nuclear and particle physics. Atomic energy. RadioactivityQC770-798ENEuropean Physical Journal C: Particles and Fields, Vol 81, Iss 11, Pp 1-7 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Astrophysics QB460-466 Nuclear and particle physics. Atomic energy. Radioactivity QC770-798
spellingShingle	Astrophysics QB460-466 Nuclear and particle physics. Atomic energy. Radioactivity QC770-798 Ayan Banerjee Anirudh Pradhan Takol Tangphati Farook Rahaman Wormhole geometries in f(Q) gravity and the energy conditions
description	Abstract Following the recent theory of f(Q) gravity, we continue to investigate the possible existence of wormhole geometries, where Q is the non-metricity scalar. Recently, the non-metricity scalar and the corresponding field equations have been studied for some spherically symmetric configurations in Mustafa (Phys Lett B 821:136612, 2021) and Lin and Zhai (Phys Rev D 103:124001, 2021). One can note that field equations are different in these two studies. Following Lin and Zhai (2021), we systematically study the field equations for wormhole solutions and found the violation of null energy conditions in the throat neighborhood. More specifically, considering specific choices for the f(Q) form and for constant redshift with different shape functions, we present a class of solutions for static and spherically symmetric wormholes. Our survey indicates that wormhole solutions could not exist for specific form function $$f(Q)= Q+ \alpha Q^2$$ f ( Q ) = Q + α Q 2 . To summarize, exact wormhole models can be constructed with violation of the null energy condition throughout the spacetime while being $$\rho \ge 0$$ ρ ≥ 0 and vice versa.
format	article
author	Ayan Banerjee Anirudh Pradhan Takol Tangphati Farook Rahaman
author_facet	Ayan Banerjee Anirudh Pradhan Takol Tangphati Farook Rahaman
author_sort	Ayan Banerjee
title	Wormhole geometries in f(Q) gravity and the energy conditions
title_short	Wormhole geometries in f(Q) gravity and the energy conditions
title_full	Wormhole geometries in f(Q) gravity and the energy conditions
title_fullStr	Wormhole geometries in f(Q) gravity and the energy conditions
title_full_unstemmed	Wormhole geometries in f(Q) gravity and the energy conditions
title_sort	wormhole geometries in f(q) gravity and the energy conditions
publisher	SpringerOpen
publishDate	2021
url	https://doaj.org/article/b3a44b2891b6491ea7f015e2f9988e4b
work_keys_str_mv	AT ayanbanerjee wormholegeometriesinfqgravityandtheenergyconditions AT anirudhpradhan wormholegeometriesinfqgravityandtheenergyconditions AT takoltangphati wormholegeometriesinfqgravityandtheenergyconditions AT farookrahaman wormholegeometriesinfqgravityandtheenergyconditions
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Wormhole geometries in f(Q) gravity and the energy conditions

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