Spherical symmetry and nonmagnetic dielectrics in analog models of gravity
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DOI: 10.1103/physreva.104.043523
Abstract: Nonmagnetic and spherically symmetric dielectric material media are investigated in their generality as analogue models, in the domains of geometrical optics, for a few relevant static and spherically symmetric solutions of gravitation, including black holes… read more here.
Keywords: symmetry nonmagnetic; spherical symmetry; models gravity; nonmagnetic dielectrics ... See more keywords
On Chaplygin models in f(G) gravity
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DOI: 10.1142/s021827182350061x
Abstract: The current work treats cosmological perturbation in a mixture of standard matter, Chaplygin gas as well as Gauss-bonnet fluids using a 1+3 covariant approach in the context of modified $f(G)$ gravity. We define the gradient… read more here.
Keywords: models gravity; chaplygin models; gravity; perturbation ... See more keywords
Anisotropic compact star models in f(T) gravity with Tolman–Kuchowicz spacetime
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DOI: 10.1142/s0219887821500602
Abstract: The purpose of this work is to present stellar models for anisotropic matter distribution in the framework of f(T) gravity with torsion scalar T. In this regard, we use the interior geometry of Tol... read more here.
Keywords: anisotropic compact; compact star; models gravity; gravity tolman ... See more keywords