Higher Dimensional Bianchi Type-I Cosmological Models With Massive String in General Relativity

Here we studied Bianchi type-I cosmological models with massive strings in general relativity in five dimensional space time. Out of the two different cases obtained here, one case leads to a five dimensional Bianchi type-I string cosmological model in general relativity while the other yields the v...

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Autores principales:	Kangujam Priyokumar Singh, Jiten Baro, Asem Jotin Meitei
Formato:	article
Lenguaje:	EN
Publicado:	Frontiers Media S.A. 2021
Materias:	five dimension cloud string bianchi type-I space-time general relativity anisotropic Astronomy QB1-991 Geophysics. Cosmic physics QC801-809
Acceso en línea:	https://doaj.org/article/3bb0cf421a0041b2b1ec660f24966785
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spelling	oai:doaj.org-article:3bb0cf421a0041b2b1ec660f249667852021-11-16T04:37:22ZHigher Dimensional Bianchi Type-I Cosmological Models With Massive String in General Relativity2296-987X10.3389/fspas.2021.777554https://doaj.org/article/3bb0cf421a0041b2b1ec660f249667852021-11-01T00:00:00Zhttps://www.frontiersin.org/articles/10.3389/fspas.2021.777554/fullhttps://doaj.org/toc/2296-987XHere we studied Bianchi type-I cosmological models with massive strings in general relativity in five dimensional space time. Out of the two different cases obtained here, one case leads to a five dimensional Bianchi type-I string cosmological model in general relativity while the other yields the vacuum Universe in general relativity in five dimensional space time. The physical and geometrical properties of the model Universe are studied and compared with the present day’s observational findings. It is observed that our model is anisotropic, expanding, shearing, and decelerates at an early stage and then accelerates at a later time. The model expands along x, y, and z axes and the extra dimension contracts and becomes unobservable at t → ∞. We also observed that the sum of the energy density (ρ) and the string tension density (λ) vanishes (ρ + λ = 0).Kangujam Priyokumar SinghKangujam Priyokumar SinghJiten BaroJiten BaroAsem Jotin MeiteiFrontiers Media S.A.articlefive dimensioncloud stringbianchi type-I space-timegeneral relativityanisotropicAstronomyQB1-991Geophysics. Cosmic physicsQC801-809ENFrontiers in Astronomy and Space Sciences, Vol 8 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	five dimension cloud string bianchi type-I space-time general relativity anisotropic Astronomy QB1-991 Geophysics. Cosmic physics QC801-809
spellingShingle	five dimension cloud string bianchi type-I space-time general relativity anisotropic Astronomy QB1-991 Geophysics. Cosmic physics QC801-809 Kangujam Priyokumar Singh Kangujam Priyokumar Singh Jiten Baro Jiten Baro Asem Jotin Meitei Higher Dimensional Bianchi Type-I Cosmological Models With Massive String in General Relativity
description	Here we studied Bianchi type-I cosmological models with massive strings in general relativity in five dimensional space time. Out of the two different cases obtained here, one case leads to a five dimensional Bianchi type-I string cosmological model in general relativity while the other yields the vacuum Universe in general relativity in five dimensional space time. The physical and geometrical properties of the model Universe are studied and compared with the present day’s observational findings. It is observed that our model is anisotropic, expanding, shearing, and decelerates at an early stage and then accelerates at a later time. The model expands along x, y, and z axes and the extra dimension contracts and becomes unobservable at t → ∞. We also observed that the sum of the energy density (ρ) and the string tension density (λ) vanishes (ρ + λ = 0).
format	article
author	Kangujam Priyokumar Singh Kangujam Priyokumar Singh Jiten Baro Jiten Baro Asem Jotin Meitei
author_facet	Kangujam Priyokumar Singh Kangujam Priyokumar Singh Jiten Baro Jiten Baro Asem Jotin Meitei
author_sort	Kangujam Priyokumar Singh
title	Higher Dimensional Bianchi Type-I Cosmological Models With Massive String in General Relativity
title_short	Higher Dimensional Bianchi Type-I Cosmological Models With Massive String in General Relativity
title_full	Higher Dimensional Bianchi Type-I Cosmological Models With Massive String in General Relativity
title_fullStr	Higher Dimensional Bianchi Type-I Cosmological Models With Massive String in General Relativity
title_full_unstemmed	Higher Dimensional Bianchi Type-I Cosmological Models With Massive String in General Relativity
title_sort	higher dimensional bianchi type-i cosmological models with massive string in general relativity
publisher	Frontiers Media S.A.
publishDate	2021
url	https://doaj.org/article/3bb0cf421a0041b2b1ec660f24966785
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Higher Dimensional Bianchi Type-I Cosmological Models With Massive String in General Relativity

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