Bridging dimensions: General embedding algorithm and field-theory reconstruction in 5D braneworld models

Nakas, Theodoros; Pappas, Thomas D.; Stuchlík, Zdeněk

doi:10.1103/physrevd.109.l041501

Cited by 4 publications

References 107 publications

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Possible signatures of higher dimension in thin accretion disk around brane world black hole

Liu,

He,

Liu

et al. 2024

J. Cosmol. Astropart. Phys.

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We probe deeply into the characteristics of thin accretion disk surrounding black hole within the brane world paradigm. We investigate how model parameters affect the physical properties of the disk. Our findings indicate that as the tidal charge parameter inherited from the higher dimension increases, the energy flux, the radiation temperature, the spectral cutoff frequency, the spectral luminosity, and the conversion efficiency of the disk all increase, but the radius of the innermost stable circular orbit decreases. Compared to cases of the Kerr and Schwarzschild black holes, the disk is hotter and more luminous for positive tidal charge parameter, while it is cooler and less luminous for negative tidal charge parameter, which suggests the potential for probing possible signatures of higher dimension.

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Possible signatures of higher dimension in thin accretion disk around brane world black hole

Liu,

He,

Liu

et al. 2024

J. Cosmol. Astropart. Phys.

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Gravitational atoms in the braneworld scenario

Bohra,

Sarkar,

Sen

2024

Phys. Rev. D

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Exact black holes in string-inspired Euler-Heisenberg theory

Bakopoulos,

Karakasis,

Mavromatos

et al. 2024

Phys. Rev. D

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We consider higher-order derivative gauge field corrections that arise in the fundamental context of dimensional reduction of string theory and Lovelock-inspired gravities and obtain an exact and asymptotically flat black hole solution, in the presence of nontrivial dilaton configurations. Specifically, by considering the gravitational theory of Euler-Heisenberg nonlinear electrodynamics coupled to a dilaton field with specific coupling functions, we perform an extensive analysis of the characteristics of the black hole, including its geodesics for massive particles, the energy conditions, thermodynamical and stability analysis. The inclusion of a dilaton scalar potential in the action can also give rise to asymptotically (anti) de Sitter spacetimes and an effective cosmological constant. Moreover, we find that the black hole can be thermodynamically favored when compared to the Gibbons-Maeda-Garfinkle-Horowitz-Strominger black hole for those parameters of the model that lead to a larger black hole horizon for the same mass. Finally, it is observed that the energy conditions of the obtained black hole are indeed satisfied, further validating the robustness of the solution within the theoretical framework, but also implying that this self-gravitating dilaton-nonlinear-electrodynamics system constitutes another explicit example of bypassing modern versions of the no-hair theorem without any violation of the energy conditions. Published by the American Physical Society 2024

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Bridging dimensions: General embedding algorithm and field-theory reconstruction in 5D braneworld models

Cited by 4 publications

References 107 publications

Possible signatures of higher dimension in thin accretion disk around brane world black hole

Possible signatures of higher dimension in thin accretion disk around brane world black hole

Gravitational atoms in the braneworld scenario

Exact black holes in string-inspired Euler-Heisenberg theory

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