scholarly journals Charged dilaton black holes with a cosmological constant

1995 ◽  
Vol 51 (10) ◽  
pp. 5720-5724 ◽  
Author(s):  
S. J. Poletti ◽  
J. Twamley ◽  
D. L. Wiltshire
Keyword(s):  
Black Holes ◽  
Cosmological Constant ◽  
Dilaton Black Holes

scholarly journals Fermions tunneling from charged anti-de Sitter black holes

2012 ◽  
Vol 90 (9) ◽  
pp. 903-909 ◽  
Author(s):  
Muhammad Sharif ◽  
Wajiha Javed
Keyword(s):  
Black Holes ◽  
Dirac Equation ◽  
Cosmological Constant ◽  
Hawking Radiation ◽  
Charged Particles ◽  
De Sitter ◽  
Event Horizons ◽  
Horizon Radius ◽  
Fermions Tunneling ◽  
Dilaton Black Holes

We study Hawking radiation as a phenomenon of tunneling through event horizons of charged torus-like as well as dilaton black holes involving a cosmological constant based on Kerner and Mann’s formulation. We obtain tunneling probabilities as well as Hawking’s emission temperature of outgoing charged particles by applying the semiclassical Wentzel–Kramers–Brillouin approximation to the general covariant Dirac equation. The graphical behavior of Hawking temperature and horizon radius is investigated. We find results consistent with those already given in the literature.

Dilaton black holes with a cosmological term

1999 ◽  
Vol 41 (2) ◽  
pp. 198-216 ◽  
Author(s):  
David L. Wiltshire
Keyword(s):  
Black Holes ◽  
Cosmological Constant ◽  
Cosmological Term ◽  
Spherically Symmetric ◽  
Dilaton Black Holes

AbstractThe properties of static spherically symmetric black holes, which carry electric and magnetic charges, and which are coupled to the dilaton in the presence of a cosmological constant, A, are reviewed.

scholarly journals Bootstrapped Newtonian Cosmology and the Cosmological Constant Problem

Symmetry ◽  
2021 ◽  
Vol 13 (2) ◽  
pp. 358
Author(s):  
Roberto Casadio ◽  
Andrea Giusti
Keyword(s):  
Black Holes ◽  
Cosmological Constant ◽  
Quantum Cosmology ◽  
Quantum Physics ◽  
Gravitational Interaction ◽  
Newtonian Gravity ◽  
Cosmological Constant Problem ◽  
Newtonian Cosmology ◽  
Natural Solution ◽  
The Impact

Bootstrapped Newtonian gravity was developed with the purpose of estimating the impact of quantum physics in the nonlinear regime of the gravitational interaction, akin to corpuscular models of black holes and inflation. In this work, we set the ground for extending the bootstrapped Newtonian picture to cosmological spaces. We further discuss how such models of quantum cosmology can lead to a natural solution to the cosmological constant problem.

scholarly journals Black holes and other spherical solutions in quadratic gravity with a cosmological constant

2021 ◽  
Vol 103 (6) ◽  
Author(s):  
V. Pravda ◽  
A. Pravdová ◽  
J. Podolský ◽  
R. Švarc
Keyword(s):  
Black Holes ◽  
Cosmological Constant ◽  
Quadratic Gravity

scholarly journals Effective Field Theory, Black Holes, and the Cosmological Constant

1999 ◽  
Vol 82 (25) ◽  
pp. 4971-4974 ◽  
Author(s):  
Andrew G. Cohen ◽  
David B. Kaplan ◽  
Ann E. Nelson
Keyword(s):  
Field Theory ◽  
Black Holes ◽  
Cosmological Constant ◽  
Effective Field Theory ◽  
Effective Field

scholarly journals Asymptotically non-flat rotating dilaton black holes

2003 ◽  
Vol 20 (7) ◽  
pp. 1403-1410 ◽  
Author(s):  
Tanwi Ghosh ◽  
P Mitra
Keyword(s):  
Black Holes ◽  
Dilaton Black Holes
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