中文
相关论文

相关论文: Beyond classical anisotropy and a new look to rela…

200 篇论文

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 consider well known Tolman V perfect fluid solution and extend it to its an anisotropic version using gravitational decoupling by minimal geometric deformation approach and analyze the behavior of new version of the…

广义相对论与量子宇宙学 · 物理学 2020-09-29 M. Zubair , Hina Azmat

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

This paper is devoted to evaluating exact anisotropic spherical solutions for static self-gravitating systems through extended geometric deformation decoupling technique. For this purpose, we consider an isotropic Tolman IV solution and…

广义相对论与量子宇宙学 · 物理学 2020-04-22 M. Sharif , Qanitah Ama-Tul-Mughani

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

We investigate the extension of isotropic interior solutions for static self-gravitating systems to include the effects of anisotropic spherically symmetric gravitational sources by means of the gravitational decoupling realised via the…

广义相对论与量子宇宙学 · 物理学 2018-02-13 J Ovalle , R Casadio , R da Rocha , A Sotomayor

We employ the gravitational decoupling approach for static and spherically symmetric systems to develop a simple and powerful method in order to a) continuously isotropize any anisotropic solution of the Einstein field equations, and b)…

广义相对论与量子宇宙学 · 物理学 2019-10-11 R. Casadio , E. Contreras , J. Ovalle , A. Sotomayor , Z. Stuchlick

This paper formulates some new exact solutions to the field equations by means of minimal gravitational decoupling in the context of $f(\mathbb{R},\mathbb{T})$ gravity. For this purpose, we consider anisotropic spherical matter distribution…

广义相对论与量子宇宙学 · 物理学 2022-12-14 M. Sharif , Tayyab Naseer

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

Using the gravitational decoupling by the minimal geometric deformation approach, we build an anisotropic version of the well-known Tolman VII solution, determining an exact and physically acceptable interior two-fluid solution that can…

广义相对论与量子宇宙学 · 物理学 2019-10-23 Sudipta Hensh , Zdeněk Stuchlík

Simple generic extensions of isotropic Durgapal--Fuloria stars to the anisotropic domain are presented. These anisotropic solutions are obtained by guided minimal deformations over a self gravitating isotropic system. When the isotropic and…

广义相对论与量子宇宙学 · 物理学 2018-07-04 Luciano Gabbanelli , Ángel Rincón , Carlos Rubio

In the present work, we investigate the possibility of obtaining stellar interiors for static self-gravitating systems describing an anisotropic matter distribution in the framework of Rastall gravity through gravitational decoupling by…

综合物理 · 物理学 2020-06-16 S. K. Maurya , Francisco Tello-Ortiz

Durgapal's fifth isotropic solution describing spherically symmetric and static matter distribution is extended to an anisotropic scenario. To do so we employ the gravitational decoupling through the minimal geometric deformation scheme.…

广义相对论与量子宇宙学 · 物理学 2018-11-14 E. Morales , Francisco Tello-Ortiz

In the work, we present investigation on decoupling gravitational sources under the framework of $f(R,T)$ gravity. Basically the complete geometric deformation technique has been employed here which facilitates finding exact solutions to…

广义相对论与量子宇宙学 · 物理学 2024-03-21 S. K. Maurya , B. Mishra , Saibal Ray , Riju Nag

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

In this paper, we consider a non-static spherical geometry and formulate its extension for the case of anisotropic matter configuration through minimal gravitational decoupling in $f(\mathbb{R},\mathbb{T})$ theory. We apply a particular…

广义相对论与量子宇宙学 · 物理学 2023-07-12 Tayyab Naseer , M. Sharif

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

This work is focused in the study of analytic anisotropic solutions to Einstein's field equations, describing spherically symmetric and static configurations by way of the gravitational decoupling through the method of Minimal Geometric…

广义相对论与量子宇宙学 · 物理学 2019-03-27 Milko Estrada , Francisco Tello-Ortiz

In this work we investigate the extra packing of mass within the framework of gravitational decoupling by means of Minimal Geometric Deformation approach. It is shown that, after a suitable set of the free parameters involved, the…

广义相对论与量子宇宙学 · 物理学 2020-06-09 Cynthia Arias , Francisco Tello-Ortiz , Ernesto Contreras

In this work, we have adopted gravitational decoupling by Minimal Geometric Deformation (MGD) approach and have developed an anisotropic version of well-known Tolman VII isotropic solution in the framework of $f(R, T)$ gravity, where $R$ is…

广义相对论与量子宇宙学 · 物理学 2021-06-17 Hina Azmat , M. Zubair
‹ 上一页 1 2 3 10 下一页 ›