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Precision entropy of spinning black holes
 JHEP 0709, 003 (2007) [arXiv:0705.1847 [hepth
"... We construct spinning black hole solutions in five dimensions that take into account the mixed gaugegravitational ChernSimons term and its supersymmetric completion. The resulting entropy formula is discussed from several points of view. We include a TaubNUT base space in order to test recent con ..."
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Cited by 22 (3 self)
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We construct spinning black hole solutions in five dimensions that take into account the mixed gaugegravitational ChernSimons term and its supersymmetric completion. The resulting entropy formula is discussed from several points of view. We include a TaubNUT base space in order to test recent conjectures relating 5D black holes to 4D black holes and the topological string. Our explicit results show that certain charge shifts have to be taken into account for these relations to hold. We also compute corrections to the entropy of black rings in terms of near horizon data.
Fundamental superstrings as holograms
, 2007
"... The worldsheet of a macroscopic fundamental superstring in the GreenSchwarz lightcone gauge is viewed as a possible boundary hologram of the near horizon region of a small black string. For toroidally compactified strings, the hologram has global symmetries of AdS3 ×S d−1 ×T 8−d (d = 3,..., 8), on ..."
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Cited by 8 (0 self)
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The worldsheet of a macroscopic fundamental superstring in the GreenSchwarz lightcone gauge is viewed as a possible boundary hologram of the near horizon region of a small black string. For toroidally compactified strings, the hologram has global symmetries of AdS3 ×S d−1 ×T 8−d (d = 3,..., 8), only some of which extend to local conformal symmetries. We construct the bulk string theory in detail for the particular case of d = 3. The symmetries of the hologram are correctly reproduced from this exact worldsheet description in the bulk. Moreover, the central charge of the boundary Virasoro algebra obtained from the bulk agrees with the Wald entropy of the associated small black holes. This construction provides an exact CFT description of the near horizon region of small black holes both in TypeII and heterotic
Near the horizon of 5D black rings
, 810
"... Abstract: For the five dimensional N = 2 black rings, we study the supersymmetry enhancement and identify the global supergroup of the near horizon geometry. We show that the global part of the supergroup is OSp(4 ∗ 2) × SL(2) which is the same as the small black string. We show that results obtai ..."
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Cited by 7 (2 self)
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Abstract: For the five dimensional N = 2 black rings, we study the supersymmetry enhancement and identify the global supergroup of the near horizon geometry. We show that the global part of the supergroup is OSp(4 ∗ 2) × SL(2) which is the same as the small black string. We show that results obtained by applying the entropy function formalism and the cextremization approach to the black ring solution are in agreement with the microscopic entropy calculation. Also, we extend our calculation to the small black ring solution and compute the modification of the corresponding parameters.
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"... Corrections to the statistical entropy of five dimensional black holes This article has been downloaded from IOPscience. Please scroll down to see the full text article. JHEP06(2009)024 ..."
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Corrections to the statistical entropy of five dimensional black holes This article has been downloaded from IOPscience. Please scroll down to see the full text article. JHEP06(2009)024
On Six Dimensional Fundamental Superstrings as Holograms
, 803
"... In this note we discuss a possible holographic dual of the two dimensional conformal field theory associated with the worldsheet of a macroscopic superstring in a compactification on fourtorus. We assume the near horizon geometry of the black string has symmetries of AdS3 × S 3 × T 4 and construct ..."
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In this note we discuss a possible holographic dual of the two dimensional conformal field theory associated with the worldsheet of a macroscopic superstring in a compactification on fourtorus. We assume the near horizon geometry of the black string has symmetries of AdS3 × S 3 × T 4 and construct a sigma model in the bulk. Analyzing the symmetries of the bulk theory and comparing them with those of the CFT in a special lightcone gauge we find agreement between global symmetries. 1
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, 902
"... Abstract: We analyze the AdS3 × M7 type supersymmetric solutions, including nontrivial fluxes, of the Killing spinor equations in the heterotic supergravity. We classify these solutions by their Gstructures and intrinsic torsions, for the cases that the number of sevendimensional Killing spinors ..."
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Abstract: We analyze the AdS3 × M7 type supersymmetric solutions, including nontrivial fluxes, of the Killing spinor equations in the heterotic supergravity. We classify these solutions by their Gstructures and intrinsic torsions, for the cases that the number of sevendimensional Killing spinors N are equal to 1, 2, 3 and 4. We find that the solutions cannot have nontrivial warp factor and the seven dimensional manifold M7 is charactrized by G2(SU(3))structures for N = 1 (2) case and SU(2)structure for N = 3 and 4 cases. They are further classified by their nontrivial intrinsic torsions. It is shown, including the leading order α ′corrections, that if we impose the Bianchi identities, the integrability conditions of the Killing spinor equations imply all the field equations. – 1 –
Type II Small Stringy Black Holes, Probe Branes and Higher Derivative Interactions
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bInstitute for Theoretical Physics and Spinoza Institute,
"... A comprehensive analysis is presented based exclusively on nearhorizon data to determine the attractor equations and the entropy of BPS black holes and rings in five spacetime dimensions, for a Lagrangian invariant under eight supersymmetries with higherderivative couplings. For spinning black h ..."
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A comprehensive analysis is presented based exclusively on nearhorizon data to determine the attractor equations and the entropy of BPS black holes and rings in five spacetime dimensions, for a Lagrangian invariant under eight supersymmetries with higherderivative couplings. For spinning black holes the results only partially agree with the results of previous work, where often additional input was used beyond the nearhorizon behaviour. A number of discrepancies remains, for example, pertaining to small black holes and to large spinning black holes, which are related to the presence of the higherderivative couplings. Arguments are presented to explain some of them. For the black rings, the analysis is intricate due to the presence of ChernSimons terms and due to the fact that the gauge fields are not globally defined. The contributions from the higherderivative couplings take a systematic form in line with expectations based on a variety of arguments. ar X iv