Impact of $f(\mathcal{Q})$ Theory on the Stability of Compact Spherical Solutions

Fuente: arXiv
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Main Authors: Rani, Shamaila, Adeel, Muhammad, Gul, M. Zeeshan, Jawad, Abdul
Format: Preprint
Published: 2024
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author Rani, Shamaila
Adeel, Muhammad
Gul, M. Zeeshan
Jawad, Abdul
author_facet Rani, Shamaila
Adeel, Muhammad
Gul, M. Zeeshan
Jawad, Abdul
contents This research paper examines the feasibility and stability of compact stars in the context of $f(\mathcal{Q})$ theory, where $\mathcal{Q}$ represents the non-metricity scalar. To achieve this objective, a static spherical line element is assumed in the interior region and the Schwarzschild spacetime is used in the exterior region of the star. The unknown constants are determined by using the Darmois junction conditions. We consider a specific model of this theory to investigate the viability of compact stars through various physical quantities such as matter contents, energy bounds, anisotropy and state parameters. The stability states for the stellar objects under consideration are determined by the speed of sound and adiabatic index, respectively. The resulting data indicate that the compact stars in this modified framework are physically viable and stable.
format Preprint
id arxiv_https___arxiv_org_abs_2410_16678
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Impact of $f(\mathcal{Q})$ Theory on the Stability of Compact Spherical Solutions
Rani, Shamaila
Adeel, Muhammad
Gul, M. Zeeshan
Jawad, Abdul
General Relativity and Quantum Cosmology
This research paper examines the feasibility and stability of compact stars in the context of $f(\mathcal{Q})$ theory, where $\mathcal{Q}$ represents the non-metricity scalar. To achieve this objective, a static spherical line element is assumed in the interior region and the Schwarzschild spacetime is used in the exterior region of the star. The unknown constants are determined by using the Darmois junction conditions. We consider a specific model of this theory to investigate the viability of compact stars through various physical quantities such as matter contents, energy bounds, anisotropy and state parameters. The stability states for the stellar objects under consideration are determined by the speed of sound and adiabatic index, respectively. The resulting data indicate that the compact stars in this modified framework are physically viable and stable.
title Impact of $f(\mathcal{Q})$ Theory on the Stability of Compact Spherical Solutions
topic General Relativity and Quantum Cosmology
url https://arxiv.org/abs/2410.16678