Zobrazeno 1 - 10
of 494
pro vyhledávání: '"Bezerra, V. B."'
In this work, we investigate some extensions of the Kiselev black hole solutions in the context of $f(\mathbb{T},\CMcal{T})$ gravity. By mapping the components of the Kiselev energy-momentum tensor into the anisotropic energy-momentum tensor and assu
Externí odkaz:
http://arxiv.org/abs/2405.20966
We obtain the metric corresponding to the Hayward black hole spacetime surrounded by a cloud of strings and investigate the role played by this cloud on the horizons, geodesics, effective potential and thermodynamics. We compare the obtained results
Externí odkaz:
http://arxiv.org/abs/2305.11708
We obtain new exact solutions for the gravitational field equations in the context of $f(R,T)$ gravity, thereby obtaining different classes of black holes surrounded by fluids, taking into account some specific values of the parameter of the equation
Externí odkaz:
http://arxiv.org/abs/2301.02534
Publikováno v:
Universe 2022, 8(12), 616
In this paper, we study quantum relativistic features of a scalar field around the Rindler-Schwarzschild wormhole. First, we introduce this new class of spacetime, investigating some energy conditions and verifying their violation in a region nearby
Externí odkaz:
http://arxiv.org/abs/2210.07427
We investigate non-inertial effects induced by a rotating frame on a non-relativistic quantum harmonic oscillator as well as of the topology associated to a screw dislocation, which corresponds to a distortion of a vertical line into a vertical spira
Externí odkaz:
http://arxiv.org/abs/2210.02559
Publikováno v:
Eur. Phys. J. C (2022) 82:669
We examine the interaction between massless scalar fields and the gravitational field generated by a black hole solution that was recently obtained in the consistent well-defined 4-dimensional Einstein-Gauss-Bonnet gravity with a cosmological constan
Externí odkaz:
http://arxiv.org/abs/2205.15613
Publikováno v:
Eur. Phys. J. Plus 137, 628 (2022)
Considering exact spacetimes representing rotating black holes and naked singularities, we study the possibility that the Sagnac effect detects $i$) higher dimensions, $ii$) rotation of black holes in higher dimension, and also, $iii$) distinguishes
Externí odkaz:
http://arxiv.org/abs/2202.11710
Publikováno v:
Nuclear Physics B 972 (2021) 115568
We analyze the effect of Planck-scale modified radiation equation of state on the Reissner-Nodstr\"om-anti-de Sitter black hole inspired by Kiselev's ansatz. Deformed thermodynamic quantities are found, phase transitions and black holes as heat engin
Externí odkaz:
http://arxiv.org/abs/2110.05396
Publikováno v:
Eur. Phys. J. C 82, 932 (2022)
We investigate the quasibound states of charged massive scalar fields in the Kerr-Newman black hole spacetime by using a new approach recently developed, which uses the polynomial conditions of the Heun functions. We calculate the resonant frequencie
Externí odkaz:
http://arxiv.org/abs/2107.02562
We do a detailed study of the thermodynamics of black holes in Rainbow gravity in the framework of the Kiselev metric, taking into account different cosmic fluids which can mimic several kinds of dark energy scenarios. A discussion related to the app
Externí odkaz:
http://arxiv.org/abs/2106.03672