Analysis of Bianchi Type V Holographic Dark Energy Models in General Relativity and Lyra’s Geometry
In this paper, we analyze anisotropic and homogeneous Bianchi type V spacetime in the presence of dark matter and holographic dark energy model components in the framework of general relativity and Lyra’s geometry. The solutions of differential equation fields have been obtained by considering two s...
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| Format: | Article |
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Wiley
2021-01-01
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| Series: | Advances in High Energy Physics |
| Online Access: | http://dx.doi.org/10.1155/2021/8818590 |
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| author | Daba Meshesha Gusu M. Vijaya Santhi |
| author_facet | Daba Meshesha Gusu M. Vijaya Santhi |
| author_sort | Daba Meshesha Gusu |
| collection | DOAJ |
| description | In this paper, we analyze anisotropic and homogeneous Bianchi type V spacetime in the presence of dark matter and holographic dark energy model components in the framework of general relativity and Lyra’s geometry. The solutions of differential equation fields have been obtained by considering two specific cases, namely, the expansion scalar θ in the model is proportional to the shear scalar σ and the average scale factor taken as hybrid expansion form. The solutions for field equations are obtained in general relativity and Lyra’s geometry. The energy density of dark matter in both natures was obtained and compared so that the energy density of dark matter in general relativity is slightly different from the energy density of dark matter in Lyra’s geometry. A similar behavior occurred in case of pressure and EoS parameter of holographic dark energy model in respective frameworks. Also, it is concluded that the physical parameters such as the average Hubble parameter, spatial volume, anisotropy parameter, expansion scalar, and shear scalar are the same in both frameworks. Moreover, it is observed that the gauge function βt is a decreasing function of cosmic time in Lyra’s geometry, and for late times, the gauge function βt converges to zero and Lyra’s geometry reduces to general relativity in all respects. Finally, we conclude that our models are a close resemblance to the ΛCDM cosmological model in late times and consistent with the recent observations of cosmological data. |
| format | Article |
| id | doaj-art-7297f817c0a84ab0a7ed51b291063843 |
| institution | Kabale University |
| issn | 1687-7357 1687-7365 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
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| series | Advances in High Energy Physics |
| spelling | doaj-art-7297f817c0a84ab0a7ed51b2910638432025-02-03T05:58:21ZengWileyAdvances in High Energy Physics1687-73571687-73652021-01-01202110.1155/2021/88185908818590Analysis of Bianchi Type V Holographic Dark Energy Models in General Relativity and Lyra’s GeometryDaba Meshesha Gusu0M. Vijaya Santhi1Department of Mathematics, Ambo University, EthiopiaDepartment of Applied Mathematics, Andhra University, IndiaIn this paper, we analyze anisotropic and homogeneous Bianchi type V spacetime in the presence of dark matter and holographic dark energy model components in the framework of general relativity and Lyra’s geometry. The solutions of differential equation fields have been obtained by considering two specific cases, namely, the expansion scalar θ in the model is proportional to the shear scalar σ and the average scale factor taken as hybrid expansion form. The solutions for field equations are obtained in general relativity and Lyra’s geometry. The energy density of dark matter in both natures was obtained and compared so that the energy density of dark matter in general relativity is slightly different from the energy density of dark matter in Lyra’s geometry. A similar behavior occurred in case of pressure and EoS parameter of holographic dark energy model in respective frameworks. Also, it is concluded that the physical parameters such as the average Hubble parameter, spatial volume, anisotropy parameter, expansion scalar, and shear scalar are the same in both frameworks. Moreover, it is observed that the gauge function βt is a decreasing function of cosmic time in Lyra’s geometry, and for late times, the gauge function βt converges to zero and Lyra’s geometry reduces to general relativity in all respects. Finally, we conclude that our models are a close resemblance to the ΛCDM cosmological model in late times and consistent with the recent observations of cosmological data.http://dx.doi.org/10.1155/2021/8818590 |
| spellingShingle | Daba Meshesha Gusu M. Vijaya Santhi Analysis of Bianchi Type V Holographic Dark Energy Models in General Relativity and Lyra’s Geometry Advances in High Energy Physics |
| title | Analysis of Bianchi Type V Holographic Dark Energy Models in General Relativity and Lyra’s Geometry |
| title_full | Analysis of Bianchi Type V Holographic Dark Energy Models in General Relativity and Lyra’s Geometry |
| title_fullStr | Analysis of Bianchi Type V Holographic Dark Energy Models in General Relativity and Lyra’s Geometry |
| title_full_unstemmed | Analysis of Bianchi Type V Holographic Dark Energy Models in General Relativity and Lyra’s Geometry |
| title_short | Analysis of Bianchi Type V Holographic Dark Energy Models in General Relativity and Lyra’s Geometry |
| title_sort | analysis of bianchi type v holographic dark energy models in general relativity and lyra s geometry |
| url | http://dx.doi.org/10.1155/2021/8818590 |
| work_keys_str_mv | AT dabamesheshagusu analysisofbianchitypevholographicdarkenergymodelsingeneralrelativityandlyrasgeometry AT mvijayasanthi analysisofbianchitypevholographicdarkenergymodelsingeneralrelativityandlyrasgeometry |