scholarly journals Charged scalar perturbations on charged black holes in de Rham-Gabadadze-Tolley massive gravity

2017 ◽  
Vol 96 (12) ◽  
Author(s):  
Piyabut Burikham ◽  
Supakchai Ponglertsakul ◽  
Lunchakorn Tannukij
Keyword(s):  
Black Holes ◽  
Massive Gravity ◽  
Charged Scalar ◽  
Charged Black Holes ◽  
De Rham ◽  
Scalar Perturbations

scholarly journals Ultimate Unification: Gravity-led Democracy vs. Uber-Symmetries

2020 ◽  
Author(s):  
Stephane Maes
Keyword(s):  
Black Holes ◽  
Magnetic Monopoles ◽  
Massive Gravity ◽  
Small Scale ◽  
Symmetry Groups ◽  
Symmetric State ◽  
Charged Black Holes ◽  
Small Scales ◽  
Real Universe

In this paper, we start from conventional GUTs and ToEs and discuss their challenges due not only to the lack of observations of proton decays and magnetic monopoles, but also to the fact that when gravity is considered, especially with mechanisms à la multi-folds, where gravity emerges from entanglement, both these phenomena are expected to not exist. With only a few exception, ToEs are badly hurt, including many superstrings, and most GUTs are knocked out. Because of the massive gravity at small scale contributed by entanglement in a multi-fold universe, we encounter new lifecycles for charged black holes and discover that, at small scales, gravity is no more the weakest interaction. In fact, sources and carriers of all interactions democratically carry gravity along with their interaction the same way and all interactions have similar strength. It becomes a new symmetric state with an Ultimate Unification of all the forces, but without the hierarchies of symmetry groups typically involved in GUTs, and without intermediate GUTs not involving gravity from the get-go. These results are obtained in a multi-fold universe, but with discussions of what can be said about our real universe.

scholarly journals Quasinormal Modes of Charged Black Holes in Higher-Dimensional Einstein-Power-Maxwell Theory

Axioms ◽  
2020 ◽  
Vol 9 (1) ◽  
pp. 33 ◽  
Author(s):  
Grigoris Panotopoulos
Keyword(s):  
Black Holes ◽  
Scalar Field ◽  
Electric Charge ◽  
Quasinormal Modes ◽  
Space Time ◽  
Maxwell Theory ◽  
Charged Black Holes ◽  
Higher Dimensional ◽  
The Impact ◽  
Scalar Perturbations

We compute the quasinormal frequencies for scalar perturbations of charged black holes in five-dimensional Einstein-power-Maxwell theory. The impact on the spectrum of the electric charge of the black holes, of the angular degree, of the overtone number, and of the mass of the test scalar field is investigated in detail. The quasinormal spectra in the eikonal limit are computed as well for several different space-time dimensionalities.

scholarly journals Charged black holes in new massive gravity

2011 ◽  
Vol 695 (1-4) ◽  
pp. 359-364 ◽  
Author(s):  
Ahmad Ghodsi ◽  
Mohammad Moghadassi
Keyword(s):  
Black Holes ◽  
Massive Gravity ◽  
Charged Black Holes

Nonlinearly charged black holes surrounded by cloud of strings and quintessence in Einstein-Massive gravity

2021 ◽  
pp. 2150184
Author(s):  
Askar Ali
Keyword(s):  
Black Holes ◽  
Heat Capacity ◽  
Black Hole Solution ◽  
Massive Gravity ◽  
Thermodynamic Quantities ◽  
First Law Of Thermodynamics ◽  
Charged Black Holes ◽  
Stability And Instability ◽  
Set Up ◽  
Electrically Charged

In this work, a new model of double-Logarithmic electrodynamics has been minimally coupled to Einstein-massive gravity and the nonlinearly charged black holes in the presence of quintessential cosmic dark energy and string cloud background are investigated. In this set up, new magnetically charged black hole solution has been derived. Thermodynamics of these black holes are also analyzed and different thermodynamic quantities are computed. Basic thermodynamic quantities such as heat capacity and Hawking temperature have been plotted and the regions corresponding to thermodynamic stability and instability are pointed out. The generalized first law of thermodynamics and the associated Smarr’s relation have also been written down in this context of massive gravity and matter sources. At last, the nonlinearly electrically charged black holes are also briefly studied.

scholarly journals Charged black holes in nonlinear massive gravity

2013 ◽  
Vol 87 (6) ◽  
Author(s):  
Yi-Fu Cai ◽  
Damien A. Easson ◽  
Caixia Gao ◽  
Emmanuel N. Saridakis
Keyword(s):  
Black Holes ◽  
Massive Gravity ◽  
Charged Black Holes

scholarly journals Quasinormal modes of black holes in Einstein-power-Maxwell theory

2018 ◽  
Vol 27 (03) ◽  
pp. 1850034 ◽  
Author(s):  
Grigoris Panotopoulos ◽  
Ángel Rincón
Keyword(s):  
Black Holes ◽  
Angular Momentum ◽  
Quantum Number ◽  
Quasinormal Modes ◽  
Sixth Order ◽  
Wkb Approximation ◽  
Maxwell Theory ◽  
Analytical Expression ◽  
Charged Black Holes ◽  
Scalar Perturbations

In the present work, we compute the spectrum of quasinormal frequencies of four-dimensional (4D) charged black holes (BHs) in Einstein-power-Maxwell (EpM) theory. In particular, we study scalar perturbations adopting the sixth-order WKB approximation. We analyze in detail, the behavior of the spectrum depending on the charge of the BH, the quantum number of angular momentum and the overtone number. In addition, a comparison is made between the results obtained here and the results valid for charged BHs in other theories as well as for the Reissner–Nordström BH. Finally, we have provided an analytical expression for the quasinormal spectrum in the eikonal limit.

scholarly journals Phase transition of charged black holes in massive gravity through new methods

2016 ◽  
Vol 528 (11-12) ◽  
pp. 819-834 ◽  
Author(s):  
S. H. Hendi ◽  
S. Panahiyan ◽  
B. Eslam Panah ◽  
M. Momennia
Keyword(s):  
Phase Transition ◽  
Black Holes ◽  
Massive Gravity ◽  
Charged Black Holes ◽  
New Methods
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