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In the context of the Randall-Sundrum braneworld, the minimal geometric deformation approach, which has been successfully used to generate exact interior solutions to Einstein's field equations for static braneworld stars with local and…

广义相对论与量子宇宙学 · 物理学 2010-12-09 J. Ovalle

In the context of the Randall-Sundrum braneworld, the minimal geometric deformation approach (MGD) is used to generate an exact analytic interior solution to four-dimensional effective Einstein's field equations for a spherically symmetric…

广义相对论与量子宇宙学 · 物理学 2018-02-12 J Ovalle , F Linares

The minimal geometric deformation approach was introduced in order to study the exterior space-time around spherically symmetric self-gravitating systems, like stars or similar astrophysical objects as well, in the Randall-Sundrum…

广义相对论与量子宇宙学 · 物理学 2015-10-15 Roberto Casadio , Jorge Ovalle , Roldao da Rocha

The method of minimal geometric deformation (MGD) is used to derive static, strongly gravitating, spherically symmetric, compact stellar distributions. The trace and Weyl anomalies are then employed to probe the MGD in the holographic…

广义相对论与量子宇宙学 · 物理学 2021-05-04 P. Meert , R. da Rocha

The first exact interior solution to Einstein's field equations for a static and non-uniform braneworld star with local and non-local bulk terms is presented. It is shown that the bulk Weyl scalar ${\cal U}(r)$ is always negative inside the…

广义相对论与量子宇宙学 · 物理学 2009-07-22 J Ovalle

We consider here a full study of stellar dynamics from the brane-world point of view in the case of constant density and of a polytropic fluid. We start our study cataloguing the minimal requirements to obtain a compact object with a…

广义相对论与量子宇宙学 · 物理学 2015-07-29 Francisco X. Linares , Miguel A. Garcia-Aspeitia , L. Arturo Ureña-Lopez

The main objective of this work is to study in some detail the Randall-Sundrum gravity under the gravitational decoupling through the minimal geometric deformation approach (MGD-decoupling). We show a family of new black hole solutions as…

广义相对论与量子宇宙学 · 物理学 2020-08-21 P. León , A. Sotomayor

The method of minimal geometric deformation (MGD) is used to derive static, strongly gravitating, spherically symmetric, compact stellar distributions that are solutions of the Yang-Mills-Einstein-Dirac coupled field equations, on fluid…

高能物理 - 理论 · 物理学 2020-07-08 Roldao da Rocha

If the observable universe is a braneworld of Randall-Sundrum type, then particle interactions at high energies will produce 5-dimensional gravitons that escape into the bulk. As a result, the Weyl energy density on the brane does not…

广义相对论与量子宇宙学 · 物理学 2009-11-10 Emily Leeper , Roy Maartens , Carlos Sopuerta

We show that in a Randall-Sundrum II type braneworld, the vacuum exterior of a spherical star is not in general a Schwarzschild spacetime, but has radiative-type stresses induced by 5-dimensional graviton effects. Standard matching…

高能物理 - 理论 · 物理学 2009-11-07 Cristiano Germani , Roy Maartens

In the context of the braneworld, a method to find consistent solutions to Einstein's field equations in the interior of a spherically symmetric, static and non uniform stellar distribution with Weyl stresses is developed. This method,…

广义相对论与量子宇宙学 · 物理学 2009-02-11 J Ovalle

We study the dipolar magnetic field configuration in dependence on brane tension and present solutions of Maxwell equations in the internal and external background spacetime of a magnetized spherical star in a Randall-Sundrum II type…

广义相对论与量子宇宙学 · 物理学 2008-11-26 B. J. Ahmedov , F. J. Fattoyev

The method of geometric deformation (MGD) is here employed to study compact stellar configurations, which are solutions of the effective Einstein-Dirac coupled field equations on fluid branes. Non-linear, self-interacting, fermionic fields…

高能物理 - 理论 · 物理学 2020-04-02 Roldao da Rocha

The minimal geometric deformation approach is employed to show the existence of brane-world stellar distributions with vacuum Schwarzschild exterior, thus without energy leaking from the exterior of the brane-world star into the extra…

广义相对论与量子宇宙学 · 物理学 2015-02-02 Jorge Ovalle , László Á. Gergely , Roberto Casadio

We provide a methodology for decoupling the bulk gravitational field equations of braneworld black holes to suppress the bulk singularities. Thus, we provide a regular braneworld black hole setup. To achieve this, we apply a Minimal…

广义相对论与量子宇宙学 · 物理学 2025-01-10 Milko Estrada , T. M. Crispim , G. Alencar

We study the structure of electromagnetic field of slowly rotating magnetized star in a Randall-Sundrum II type braneworld. The star is modeled as a sphere consisting of perfect highly magnetized fluid with infinite conductivity and…

太阳与恒星天体物理 · 物理学 2015-05-20 Viktoriya Morozova , Bobomurat Ahmedov

We consider here the general conditions for the stability of brane stars that obey a so called a "minimal setup": the nonlocal anisotropic stress and energy flux are everywhere absent, and the only permitted Weyl correction is the interior…

广义相对论与量子宇宙学 · 物理学 2014-12-30 Miguel A. García-Aspeitia , L. Arturo Ureña-López

In the context of the Randall-Sundrum braneworld, an exhaustive and detailed description of the approach based in the minimal anisotropic consequence onto the brane, which has been successfully used to generate exact interior solutions to…

广义相对论与量子宇宙学 · 物理学 2017-08-23 J Ovalle

We analyze the effective field equations of the Randall-Sundrum braneworld coupled with a Klein-Gordon scalar field through the minimal geometric deformation decoupling method (MGD-decoupling). We introduce two different ways to apply the…

高能物理 - 理论 · 物理学 2022-03-31 P. León , A. Sotomayor

The higher dimensional Weyl curvature induces on the brane a new source of gravity. This Weyl fluid of geometrical origin (reducing in the spherically symmetric, static configuration to a dark radiation and dark pressure) modifies…

广义相对论与量子宇宙学 · 物理学 2015-06-05 K. C. Wong , T. Harko , K. S. Cheng , L. Á. Gergely
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