Non-static charged complex structures in $$f({\mathbb {G}}, {\mathbf {T}}^2)$$ gravity

Yousaf, Z.; Bhatti, M. Z.; Khan, S.

doi:10.1140/epjp/s13360-022-02480-6

Cited by 21 publications

(10 citation statements)

References 70 publications

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“…This condition will be used as a supplementary condition with the condition Y TF = 0 to construct several specific models. In order to have a better understanding for this condition one can see [68][69][70][71].…”

Section: Quasi-homologous Constraintmentioning

confidence: 99%

Significance of Charge on the Dynamics of Hyperbolically Distributed Fluids

et al. 2022

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This manuscript is devoted to analyze hyperbolically symmetric non-static fluid distribution incorporated with heat flux and electromagnetic field. We have developed a general framework in order to examine the dynamic regime of the matter configuration which eventually results in the static spacetime. With the aim of doing this, we constructed the Einstein-Maxwell (EM) field equations and obtained the conservation equation. Furthermore, the formulation of mass function indicates the presence of the negative energy density, which leads towards the significant quantum implications. Taking into account the transport equation, we have observed the thermodynamical attributes of the fluid. Additionally, quasi- homologous constraint has been utilized to construct several models. We have deduced the worthwhile applications of the astrophysical objects by evaluating several analytical solutions in terms of the kinematical variables.

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Section: Quasi-homologous Constraintmentioning

confidence: 99%

Significance of Charge on the Dynamics of Hyperbolically Distributed Fluids

et al. 2022

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“…Specifically, the scalar function Y TF explains how the above-stated terms change the value of the mass function relative to its value in the case of isotropic and homogeneous fluid configuration. This phenomenon provides the basis behind the notion of complexity as described in [16,20,35]. This new notion was based on the assumption that a system endowed with isotropic homogeneous configuration exhibits zero complexity.…”

Section: The Scheme Of Orthogonal Splitting Of Curvature Tensormentioning

confidence: 99%

“…Some modified GBG models of the late-time cosmological evolution are also predicted by low-energy effective string theory action [14]. The modified versions of GBG cosmologies can be used for understanding the evolution of complex self-gravitational systems with the help of structure scalars as well as gravitational waves' events [15][16][17][18][19][20][21].…”

Section: Introductionmentioning

confidence: 99%

“…This novel scheme of complexity is based on the fundamental assumption that less complex systems comprises of homogeneous (in the energy density) and isotropic pressure fluid configurations. The perspective applications regarding the complexity of self-gravitational systems within the frameworks of different geometrically modified gravitational models has been discussed in detail [16][17][18][19][20][21]. This investigation is endeavored to analyze the physical features of locally anisotropic, hyperbolically symmetric self-gravitational fluids in terms of geometrical and physical variables that seem to play a significant role in the evolution of such objects.…”

Section: Introductionmentioning

confidence: 99%

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Analysis of hyperbolically symmetric fluid configurations in modified Gauss–Bonnet gravity

2022

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This paper studies in detail the general physical properties inherent to the static fluid configurations possessing hyperbolic symmetry through the mechanism of modified Gauss–Bonnet gravity (GBG). The energy density of the anisotropic fluid configuration seems to be essentially negative, which indicates that any possible application of these fluid distributions needs severe physical constraints wherein quantum processes become significant. Several exact hyperbolically symmetric solutions with their corresponding generating functions are presented by imposing certain conditions (i.e., conformal flatness, vanishing complexity factor and stiff equation of state) on the fluid variables in the presence of higher-curvature GBG-corrections. Few of the provided stellar solutions exhibit the evolution of hyperbolically symmetric matter configurations whose center of symmetry is surrounded by a vacuum cavity.

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“…As we shall see later, although the radial deformation can be obtained independently after imposing some suitable equation of state, obtaining the temporal deformation is not straightforward in general. In this work we demonstrate that the complexity factor introduced in [64] (for recent developments see [65][66][67][68][69][70][71][72][73][74], for example) can be used to obtain a constraint on the metric functions which allow to obtain the temporal defora e-mails: econtreras@usfq.edu.ec ; ernesto.contreras@gmail.com (corresponding author) b e-mail: zdenek.stuchlik@physics.slu.cz mation analytically. The interest on the complexity factor has increase in recent years given that it provides useful information about how "complex" is a system in comparison with that supported by a homogeneous and isotropic fluid satisfying the so-called vanishing complexity condition.…”

Section: Introductionmentioning

confidence: 99%