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The present paper is devoted to investigating the possibility of getting stellar interiors for ultra-dense compact spherical systems portraying an anisotropic matter distribution employing the gravitational decoupling by means of Minimal…

广义相对论与量子宇宙学 · 物理学 2020-03-12 S. K. Maurya , Abdelghani Errehymy , Ksh. Newton Singh , Francisco Tello-Ortiz , Mohammed Daoud

The current theoretical development identified as the gravitational decoupling via Complete Geometric Deformation (CGD) method that has been introduced to explore the nonmetricity $Q$ effects in relativistic astrophysics. In the present…

广义相对论与量子宇宙学 · 物理学 2023-02-06 S. K. Maurya , Ksh. Newton Singh , Santosh V Lohakare , B. Mishra

We investigate spherically symmetric classes of anisotropic solutions within the realm of a schematic gravitational decoupling scheme, primarily decoupling through minimal geometric deformation, applied to non-rotating, ultra-compact,…

广义相对论与量子宇宙学 · 物理学 2024-08-23 Z. Yousaf , Kazuharu Bamba , Bander Almutairi , S. Khan , M. Z. Bhatti

In this work we extend the so--called Minimal Geometric Deformation method in $2+1$ dimensional space--times with cosmological constant in order to deal with the gravitational decoupling of two circularly symmetric sources. We find that,…

广义相对论与量子宇宙学 · 物理学 2019-10-15 E. Contreras , P. Bargueño

In this work we propose a novel approach to integrate the Lane-Emden equations for relativistic anisotropic polytropes. We take advantage of the fact that Gravitational Decoupling allows to decrease the number of degrees of freedom once a…

广义相对论与量子宇宙学 · 物理学 2022-09-07 D. Santana , E. Fuenmayor , E. Contreras

In this work we will analyse the complexity factor, proposed by L. Herrera, for spherically symmetric static matter distributions satisfying a polytropic equation through the gravitational decoupling method. Specifically, we will use the…

广义相对论与量子宇宙学 · 物理学 2022-11-04 C. Las Heras , P. Leon

We use gravitational decoupling to establish a connection between the minimal geometric deformation approach and the standard method for obtaining anisotropic fluid solutions. Motivated by the relations that appear in the framework of…

广义相对论与量子宇宙学 · 物理学 2020-03-04 Gabriel Abellán , Victor Torres , Ernesto Fuenmayor , Ernesto Contreras

In this paper we show that any static and spherically symmetric anisotropic solution of the Einstein field equations can be thought as a system sourced by certain deformed isotropic system in the context of Minimal Geometric…

广义相对论与量子宇宙学 · 物理学 2018-09-26 Ernesto Contreras

In this outline we recognize the idea of complexity factor for static anisotropic self-gravitating source with generalized $f(R)$ metric gravity theory. In present consideration, we express the Einstein field equations, hydrostatic…

广义相对论与量子宇宙学 · 物理学 2018-12-05 G. Abbas , H. Nazar

In this study, we developed the geometrically deformed compact objects in the $f(Q, T)$ gravity theory under an electric field through gravitational decoupling via. minimal geometric deformation (MGD) technique for the first time. The…

广义相对论与量子宇宙学 · 物理学 2024-08-06 Sneha Pradhan , Sunil Kumar Maurya , Pradyumn Kumar Sahoo , Ghulam Mustafa

In this work, we generate two static anisotropic solutions for a sphere containing quark matter in the framework of self-interacting Brans-Dicke theory. For this purpose, we add an anisotropic source in the seed distribution and decouple…

广义相对论与量子宇宙学 · 物理学 2023-07-26 M. Sharif , Amal Majid

The manifesto of the current article is to investigate the compact anisotropic matter profiles in the context of one of the modified gravitational theories, known as $f(\mathcal{R}, \mathcal{T})$ gravity, where $\mathcal{R}$ is a Ricci…

广义相对论与量子宇宙学 · 物理学 2021-01-05 G. Mustafa , Xia Tie-Cheng , Mushtaq Ahmad , M. Farasat Shamir

The main aim of this paper is to obtain analytic relativistic anisotropic spherical solutions in f(R,$\mathcal{T}$) scenario. To do so we use modified Durgapal-Fuloria metric potential and the isotropic condition is imposed in order to…

广义相对论与量子宇宙学 · 物理学 2020-02-19 S. K. Maurya , Francisco Tello-Ortiz

The condition for pressure isotropy, for spherically symmetric gravitational fields with charged and uncharged matter, is reduced to a recurrence equation with variable, rational coefficients. This difference equation is solved in general…

广义相对论与量子宇宙学 · 物理学 2009-11-11 S. D. Maharaj , S. Thirukkanesh

The aim of this work is to obtain new analitical solutions for Einstein equations in the anisotropical domain. This will be done via the minimal geometric deformation (MGD) approach, which is a simple and systematical method that allow us…

广义相对论与量子宇宙学 · 物理学 2018-08-21 C. Las Heras , P. Leon

This article focuses on different anisotropic models within the framework of a specific modified $f(\mathcal{R},\mathcal{T},\mathcal{R}_{\zeta\gamma}\mathcal{T}^{\zeta\gamma})$ gravity theory. The study adopts a static spherically symmetric…

广义相对论与量子宇宙学 · 物理学 2025-04-22 Yihu Feng , Tayyab Naseer , G. Mustafa , S. K. Maurya

In this article, an exact solution of Einstein's field equations for spherically symmetric anisotropic matter distributions in isotropic coordinates is obtained. For this, the solution has been obtained by using a generalized physically…

广义相对论与量子宇宙学 · 物理学 2025-08-25 B S Ratanpal , Bhavesh Suthar

In this paper, we generate an exact anisotropic gravastar model using gravitational decoupling technique through minimal geometric deformation in the framework of $f(\Re, {T}^{2})$ gravity. This novel model explains an ultra-compact stellar…

广义相对论与量子宇宙学 · 物理学 2023-04-17 M. Sharif , Saba Naz

We present an algorithm to generalize a plethora of well-known solutions to Einstein field equations describing spherically symmetric relativistic fluid spheres by relaxing the pressure isotropy condition on the system. By suitably fixing…

综合物理 · 物理学 2018-02-14 S. Thirukkanesh , F. C. Ragel , Ranjan Sharma , Shyam Das

In a previously work, we undertook a static and anisotropic content in $f(T)$ theory and obtained new spherically symmetric solutions considering a constant torsion and some particular conditions for the pressure. In this paper, still in…

综合物理 · 物理学 2012-02-22 M. Hamani Daouda , Manuel E. Rodrigues , M. J. S. Houndjo