scholarly journals ATTRACTOR FLOWS IN st2 BLACK HOLES

2011 ◽  
Vol 08 (05) ◽  
pp. 1031-1077
Author(s):  
RAJU ROYCHOWDHURY
Keyword(s):  
Black Holes ◽  
Central Charge ◽  
Space Time ◽  
Marginal Stability ◽  
Minimal Rank ◽  
General Solutions ◽  
Flow Equations ◽  
First Order ◽  
Extremal Black Holes

Following the same treatment of Bellucci et al. we obtain, the hitherto unknown general solutions of the radial attractor flow equations for extremal black holes, both for non-BPS with non-vanishing and vanishing central charge Z for the so-called st2 model, the minimal rank-two [Formula: see text] symmetric supergravity in d = 4 space-time dimensions. We also make useful comparisons with results that already exist in literature, and introduce the fake supergravity (first-order) formalism to be used in our analysis. An analysis of the BPS bound all along the non-BPS attractor flows and of the marginal stability of corresponding D-brane charge configurations has also been presented.

scholarly journals First-order flow equations for extremal and non-extremal black holes

2009 ◽  
Vol 2009 (03) ◽  
pp. 150-150 ◽  
Author(s):  
Jan Perz ◽  
Paul Smyth ◽  
Thomas Van Riet ◽  
Bert Vercnocke
Keyword(s):  
Black Holes ◽  
Order Flow ◽  
Flow Equations ◽  
First Order ◽  
Extremal Black Holes

scholarly journals First-order flow equations for extremal black holes in very special geometry

2007 ◽  
Vol 2007 (10) ◽  
pp. 063-063 ◽  
Author(s):  
Gabriel L Cardoso ◽  
Anna Ceresole ◽  
Gianguido Dall'Agata ◽  
Johannes M Oberreuter ◽  
Jan Perz
Keyword(s):  
Black Holes ◽  
Order Flow ◽  
Flow Equations ◽  
First Order ◽  
Special Geometry ◽  
Extremal Black Holes

scholarly journals Black holes, first-order flow equations and geodesics on symmetric spaces

2009 ◽  
Vol 57 (5-7) ◽  
pp. 659-665
Author(s):  
J. Perz ◽  
P. Smyth ◽  
T. Van Riet ◽  
B. Vercnocke
Keyword(s):  
Black Holes ◽  
Symmetric Spaces ◽  
Order Flow ◽  
Flow Equations ◽  
First Order

scholarly journals First-order flows and stabilisation equations for non-BPS extremal black holes

2011 ◽  
Vol 2011 (6) ◽  
Author(s):  
Pietro Galli ◽  
Kevin Goldstein ◽  
Stefanos Katmadas ◽  
Jan Perz
Keyword(s):  
Black Holes ◽  
First Order ◽  
Extremal Black Holes

scholarly journals First order flows for N=2 extremal black holes and duality invariants

2010 ◽  
Vol 824 (1-2) ◽  
pp. 239-253 ◽  
Author(s):  
Anna Ceresole ◽  
Gianguido Dall'Agata ◽  
Sergio Ferrara ◽  
Armen Yeranyan
Keyword(s):  
Black Holes ◽  
First Order ◽  
Extremal Black Holes

scholarly journals Flow equations for non-BPS extremal black holes

2007 ◽  
Vol 2007 (03) ◽  
pp. 110-110 ◽  
Author(s):  
Anna Ceresole ◽  
Gianguido Dall'Agata
Keyword(s):  
Black Holes ◽  
Flow Equations ◽  
Extremal Black Holes

scholarly journals Kerr–Bolt black hole entropy and soft hair

2020 ◽  
Vol 35 (25) ◽  
pp. 2050156
Author(s):  
M. R. Setare ◽  
A. Jalali
Keyword(s):  
Black Holes ◽  
Phase Space ◽  
Central Charge ◽  
Black Hole Entropy ◽  
Space Time ◽  
Limiting Behavior ◽  
Virasoro Symmetry ◽  
Kerr Space ◽  
Space Formalism ◽  
Good Agreement

Recently it has been speculated that a set of infinitesimal [Formula: see text] diffeomorphisms exist which act nontrivially on the horizon of some black holes such as Kerr and Kerr–Newman black holes.[Formula: see text] Having applied this symmetry in covariant phase space formalism, one can obtain Virasoro charges as surface integrals on the horizon. Kerr–Bolt space–time is well known for its asymptotically topology and has been studied widely in recent years. In this work, we are interested to find conserved charge associated to the Virasoro symmetry of Kerr–Bolt geometry using covariant phase space formalism. We will show right and left central charge are [Formula: see text], respectively. Our results also show good agreement with Kerr space–time in the limiting behavior.

scholarly journals New non-extremal and BPS hairy black holes in gauged $$ \mathcal{N} $$ = 2 and $$ \mathcal{N} $$ = 8 supergravity

2021 ◽  
Vol 2021 (4) ◽  
Author(s):  
Andres Anabalon ◽  
Dumitru Astefanesei ◽  
Antonio Gallerati ◽  
Mario Trigiante
Keyword(s):  
Black Holes ◽  
Black Hole ◽  
Boundary Conditions ◽  
Charged Black Hole ◽  
Dual Theory ◽  
Real Numbers ◽  
Hairy Black Holes ◽  
Interpolation Parameter ◽  
Black Hole Solutions ◽  
Extremal Black Holes

Abstract In this article we study a family of four-dimensional, $$ \mathcal{N} $$ N = 2 supergravity theories that interpolates between all the single dilaton truncations of the SO(8) gauged $$ \mathcal{N} $$ N = 8 supergravity. In this infinitely many theories characterized by two real numbers — the interpolation parameter and the dyonic “angle” of the gauging — we construct non-extremal electrically or magnetically charged black hole solutions and their supersymmetric limits. All the supersymmetric black holes have non-singular horizons with spherical, hyperbolic or planar topology. Some of these supersymmetric and non-extremal black holes are new examples in the $$ \mathcal{N} $$ N = 8 theory that do not belong to the STU model. We compute the asymptotic charges, thermodynamics and boundary conditions of these black holes and show that all of them, except one, introduce a triple trace deformation in the dual theory.

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