scholarly journals On the existence of non-supersymmetric black hole attractors for two-parameter Calabi-Yau's and attractor equations

2006 ◽  
Vol 54 (12) ◽  
pp. 1109-1141 ◽  
Author(s):  
P. Kaura ◽  
A. Misara
Keyword(s):  
Black Hole ◽  
Two Parameter ◽  
Black Hole Attractors

scholarly journals Black Hole Attractors in Extended Supergravity

2007 ◽  
Author(s):  
Sergio Ferrara ◽  
Alessio Marrani ◽  
Arttu Rajantie ◽  
Carlo Contaldi ◽  
Paul Dauncey ◽  
...  
Keyword(s):  
Black Hole ◽  
Black Hole Attractors

scholarly journals D0-branes in black hole attractors

2006 ◽  
Vol 2006 (03) ◽  
pp. 019-019 ◽  
Author(s):  
Davide Gaiotto ◽  
Aaron Simons ◽  
Andrew Strominger ◽  
Xi Yin
Keyword(s):  
Black Hole ◽  
Black Hole Attractors

scholarly journals Black-hole attractors inN= 1 supergravity

2007 ◽  
Vol 2007 (07) ◽  
pp. 019-019 ◽  
Author(s):  
Laura Andrianopoli ◽  
Riccardo D'Auria ◽  
Sergio Ferrara ◽  
Mario Trigiante
Keyword(s):  
Black Hole ◽  
Black Hole Attractors

scholarly journals Black hole attractors and pure spinors

2006 ◽  
Vol 2006 (09) ◽  
pp. 048-048 ◽  
Author(s):  
Jonathan P Hsu ◽  
Alexander Maloney ◽  
Alessandro Tomasiello
Keyword(s):  
Black Hole ◽  
Black Hole Attractors

scholarly journals NONEXTREME BLACK HOLES FROM INTERSECTING M-BRANES

1998 ◽  
Vol 13 (08) ◽  
pp. 1305-1328 ◽  
Author(s):  
NOBUYOSHI OHTA ◽  
TAKASHI SHIMIZU
Keyword(s):  
Black Holes ◽  
Black Hole ◽  
Higher Dimensions ◽  
Symmetric Case ◽  
Spherically Symmetric ◽  
Field Equations ◽  
Deformation Parameters ◽  
Special Cases ◽  
Two Parameter ◽  
Black Hole Solutions

We investigate the possibility of extending nonextreme black hole solutions made of intersecting M-branes to those with two nonextreme deformation parameters, similar to Reissner–Nordstrøm solutions. General analysis of possible solutions is carried out to reduce the problem of solving field equations to a simple algebraic one for static spherically-symmetric case in D dimensions. The results are used to show that the extension to two-parameter solutions is possible for D= 4,5 dimensions but not for higher dimensions, and that the area of horizon always vanishes in the extreme limit for black hole solutions for D≥6 except for two very special cases which are identified. Various solutions are also summarized.

scholarly journals PARTITION FUNCTION OF NON-SUPERSYMMETRIC BLACK HOLES IN THE SUPERGRAVITY LIMIT

2008 ◽  
Vol 23 (22) ◽  
pp. 1869-1883 ◽  
Author(s):  
SHAHROKH PARVIZI ◽  
ALIREZA TAVANFAR
Keyword(s):  
Black Holes ◽  
Black Hole ◽  
Free Energy ◽  
Partition Function ◽  
Mixed Ensemble ◽  
Black Hole Attractors

In this paper, we propose a free energy for general non-supersymmetric black hole attractors (with vanishing D0-brane charge) arising in type IIA(B) superstrings on 3-fold Calabi–Yau, in the supergravity limit. This, by definition, differs from its counterpart BPS free energy by a factor of 4. Correspondingly, a mixed ensemble for these black holes is proposed.

scholarly journals Solution of Deformed Einstein Equations and Quantum Black Holes

2016 ◽  
Vol 2016 ◽  
pp. 1-7 ◽  
Author(s):  
Emre Dil ◽  
Erdinç Kolay
Keyword(s):  
Black Holes ◽  
Black Hole ◽  
Einstein Equations ◽  
Quantum Black Hole ◽  
Charged Black Holes ◽  
Deformation Parameters ◽  
Two Parameter ◽  
Insight Into

Recently, one- and two-parameter deformed Einstein equations have been studied for extremal quantum black holes which have been proposed to obey deformed statistics by Strominger. In this study, we give a deeper insight into the deformed Einstein equations and consider the solutions of these equations for the extremal quantum black holes. We then represent the implications of the solutions, such that the deformation parameters lead the charged black holes to have a smaller mass than the usual Reissner-Nordström black holes. This reduction in mass of a usual black hole can be considered as a transition from classical to quantum black hole regime.

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