scholarly journals Black strings in Hořava-Lifshitz gravity

2011 ◽  
Vol 84 (4) ◽  
Author(s):  
Alikram N. Aliev ◽  
Çetin Şentürk
Keyword(s):  
Black Strings

scholarly journals Thermodynamics of charged and rotating black strings

2012 ◽  
Vol 341 (2) ◽  
pp. 437-443 ◽  
Author(s):  
Aeeman Fatima ◽  
K. Saifullah
Keyword(s):  
Black Strings

The possibility of a stable flat dark energy-dominated Swiss-cheese brane-world universe

2020 ◽  
Vol 17 (05) ◽  
pp. 2050075
Author(s):  
Nasr Ahmed ◽  
Kazuharu Bamba ◽  
F. Salama
Keyword(s):  
Dark Energy ◽  
Cosmological Constant ◽  
Cosmological Models ◽  
Brane World ◽  
Fine Tuning ◽  
Energy Conditions ◽  
Late Time ◽  
Swiss Cheese ◽  
Black Strings ◽  
The Stability

In this paper, we study the possibility of obtaining a stable flat dark energy-dominated universe in a good agreement with observations in the framework of Swiss-cheese brane-world cosmology. Two different brane-world cosmologies with black strings have been introduced for any cosmological constant [Formula: see text] using two empirical forms of the scale factor. In both models, we have performed a fine-tuning between the brane tension and the cosmological constant so that the Equation of state (EoS) parameter [Formula: see text] for the current epoch, where the redshift [Formula: see text]. We then used these fine–tuned values to calculate and plot all parameters and energy conditions. The deceleration–acceleration cosmic transition is allowed in both models, and the jerk parameter [Formula: see text] at late-times. Both solutions predict a future dark energy-dominated universe in which [Formula: see text] with no crossing to the phantom divide line. While the pressure in the first solution is always negative, the second solution predicts a better behavior of cosmic pressure where the pressure is negative only in the late-time accelerating era but positive in the early-time decelerating era. Such a positive-to-negative transition in the evolution of pressure helps to explain the cosmic deceleration–acceleration transition. Since black strings have been proved to be unstable by some authors, this instability can actually reflect doubts on the stability of cosmological models with black strings (Swiss-cheese type brane-worlds cosmological models). For this reason, we have carefully investigated the stability through energy conditions and sound speed. Because of the presence of quadratic energy terms in Swiss-cheese type brane-world cosmology, we have tested the new nonlinear energy conditions in addition to the classical energy conditions. We have also found that a negative tension brane is not allowed in both models of the current work as the energy density will no longer be well defined.

scholarly journals Rotating charged black strings and three-dimensional black holes

1996 ◽  
Vol 54 (6) ◽  
pp. 3840-3853 ◽  
Author(s):  
José P. S. Lemos ◽  
Vilson T. Zanchin
Keyword(s):  
Black Holes ◽  
Three Dimensional ◽  
Black Strings

scholarly journals Liquid bridges and black strings in higher dimensions

2008 ◽  
Vol 664 (1-2) ◽  
pp. 103-106 ◽  
Author(s):  
Umpei Miyamoto ◽  
Kei-ichi Maeda
Keyword(s):  
Higher Dimensions ◽  
Liquid Bridges ◽  
Black Strings

scholarly journals Remarks on Remnants by Fermions’ Tunnelling from Black Strings

2014 ◽  
Vol 2014 ◽  
pp. 1-9 ◽  
Author(s):  
Deyou Chen ◽  
Zhonghua Li
Keyword(s):  
Black Hole ◽  
Quantum Gravity ◽  
Uncertainty Principle ◽  
Final Stage ◽  
Generalized Uncertainty Principle ◽  
Black Hole Evaporation ◽  
Quantum Numbers ◽  
Black Strings

Hawking’s calculation is unable to predict the final stage of the black hole evaporation. When effects of quantum gravity are taken into account, there is a minimal observable length. In this paper, we investigate fermions’ tunnelling from the charged and rotating black strings. With the influence of the generalized uncertainty principle, the Hawking temperatures are not only determined by the rings, but also affected by the quantum numbers of the emitted fermions. Quantum gravity corrections slow down the increases of the temperatures, which naturally leads to remnants left in the evaporation.

scholarly journals From quasinormal modes of rotating black strings to hydrodynamics of a moving CFT plasma

2018 ◽  
Vol 98 (2) ◽  
Author(s):  
Luis A. H. Mamani ◽  
Jaqueline Morgan ◽  
Alex S. Miranda ◽  
Vilson T. Zanchin
Keyword(s):  
Quasinormal Modes ◽  
Black Strings

A formal proof of instability for five-dimensional Schwarzschild black strings

Scilight ◽  
2021 ◽  
Vol 2021 (10) ◽  
pp. 101112
Author(s):  
Matthew Ishimaru
Keyword(s):  
Formal Proof ◽  
Black Strings
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