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We review the basic elements of the Minimal Geometric Deformation approach in details. This method has been successfully used to generate brane-world configurations from general relativistic perfect fluid solutions.

广义相对论与量子宇宙学 · 物理学 2018-02-12 J Ovalle , R Casadio , A Sotomayor

In this paper, we adopt minimal gravitational decoupling scheme to extend a non-static spherically symmetric isotropic composition to anisotropic interior in…

广义相对论与量子宇宙学 · 物理学 2023-08-03 M. Sharif , Tayyab Naseer

In this paper, we derive multiple anisotropic analogs from the established isotropic model by means of the gravitational decoupling approach in a fluid-geometry interaction based theory. To accomplish this, we initially consider a static…

广义相对论与量子宇宙学 · 物理学 2025-02-24 Tayyab Naseer , G. Mustafa

In this work, we derive the general solutions for a cylindrically symmetric space-time filled with a cosmological perfect fluid obeying $p=\gamma \rho$ ($0\leq \gamma \leq 1$), where $\gamma=1$ represents a stiff or Zeldovich fluid. Using…

广义相对论与量子宇宙学 · 物理学 2026-04-06 Tiberiu Harko , Francisco S. N. Lobo , Man Kwong Mak

In this work we implement the Minimal Geometric Deformation method to obtain the isotropic sector and the decoupler matter content of any anisotropic solution of the Einstein field equations with cosmological constant in $2+1$ dimensional…

广义相对论与量子宇宙学 · 物理学 2019-06-28 Ernesto Contreras

We argue that an arbitrary general relativistic static anisotropic fluid sphere, (static and spherically symmetric but with transverse pressure not equal to radial pressure), can nevertheless be successfully mimicked by suitable linear…

广义相对论与量子宇宙学 · 物理学 2017-11-29 Petarpa Boonserm , Tritos Ngampitipan , Matt Visser

This paper uses the gravitational decoupling through the minimal geometric deformation approach and extends a known isotropic solution for a self-gravitating interior to two types of anisotropic spherical solutions in Rastall gravity in the…

广义相对论与量子宇宙学 · 物理学 2024-02-20 M. Sharif , M. Sallah

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

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

The effective action for quantum gravity coupled to matter contains corrections arising from the functional measure. We analyse the effect of such corrections for anisotropic self-gravitating compact objects described by means of the…

广义相对论与量子宇宙学 · 物理学 2025-07-29 R. Casadio , I. Kuntz , R. da Rocha

A new class of solutions describing analytical solutions for compact stellar structures has been developed within the tenets of General Relativity. Considering the inherent anisotropy in compact stars, a stable and causal model for…

广义相对论与量子宇宙学 · 物理学 2021-10-14 Jay Solanki , Bhashin Thakore

Whereas the nature of dark components in the Universe remains unknown, alternative models of gravity have been developed to offer a geometric explanation to the origin of such components. In this work we use the Minimal Geometric…

广义相对论与量子宇宙学 · 物理学 2020-04-03 Francisco X. Linares Cedeño , Ernesto Contreras

The gravitational field equations in general relativity (GR) consist of a sophisticated system of nonlinear partial differential equations. Solving such equations in some generic off-diagonal forms is usually a hard analytic or numeric…

广义相对论与量子宇宙学 · 物理学 2025-08-18 Sergiu I. Vacaru , Elşen V. Veliev

We present solution generating techniques which permit to construct exact inhomogeneous and anisotropic cosmological solutions to a four-dimensional low energy limit of string theory containing non-minimally interacting electromagnetic and…

高能物理 - 理论 · 物理学 2009-10-31 Stoytcho Yazadjiev

Anisotropic spherically symmetric solutions within the framework of the Brans-Dicke theory are uncovered through a unique gravitational decoupling approach involving a minimal geometric transformation. This transformation effectively…

广义相对论与量子宇宙学 · 物理学 2023-11-01 Kazuharu Bamba , M. Z. Bhatti , Z. Yousaf , Z. Shoukat

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

The purpose of this paper is to obtain exact solutions for charged anisotropic spherically symmetric matter configuration. For this purpose, we consider known solution for isotropic spherical system in the presence of electromagnetic field…

广义相对论与量子宇宙学 · 物理学 2018-07-04 M. Sharif , Sobia Sadiq

This paper constructs three different anisotropic extensions of the existing isotropic solution to the modified field equations through the gravitational decoupling in $f(\mathbb{R},\mathbb{T})$ theory. For this, we take a static sphere…

广义相对论与量子宇宙学 · 物理学 2024-08-02 Tayyab Naseer , M. Sharif

This paper develops some new analytical solutions to the $f(\mathbb{R},\mathbb{T})$ field equations through extended gravitational decoupling. For this purpose, we take spherical anisotropic configuration as a seed source and extend it to…

广义相对论与量子宇宙学 · 物理学 2023-02-15 M. Sharif , Tayyab Naseer

We have constructed gravity solutions by breaking the Lorentzian symmetry to its subgroup, which means there is Galilean symmetry but without the rotational and boost invariance. This solution shows anisotropic behavior along both the…

高能物理 - 理论 · 物理学 2010-10-26 Shesansu Pal