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The issue of microstate counting for general black holes in D=5, N=2 supergravity coupled to vector multiplets is discussed from various viewpoints. The statistical entropy is computed for the near-extremal case by using the central charge…

High Energy Physics - Theory · Physics 2015-06-25 Dietmar Klemm

The statistical entropy of a Schwarzschild black string in five dimensions is obtained by counting the black string states which form a representation of the near-horizon conformal symmetry with a central charge. The statistical entropy of…

High Energy Physics - Theory · Physics 2009-10-31 Saurya Das , Amit Ghosh , P. Mitra

A six-parameter family of five-dimensional black hole solutions is constructed which are labeled by their mass, two asymptotic scalar fields and three charges. It is shown that the Bekenstein-Hawking entropy is exactly matched, arbitrarily…

High Energy Physics - Theory · Physics 2009-09-17 Gary Horowitz , Juan Maldacena , Andrew Strominger

In this paper, the statistical-mechanical entropies of 5D Ricci-flat black string is calculated through the wave modes of the quantum field with improved thin-layer brick-wall method. The modes along the fifth dimension are semi-classically…

General Relativity and Quantum Cosmology · Physics 2008-11-26 Molin Liu , Hongya Liu

We derive the Bekenstein-Hawking entropy formula for four and five dimensional non-supersymmetric black holes (which include the Schwarzchild ones) by counting microscopic states. This is achieved by first showing that these black holes are…

High Energy Physics - Theory · Physics 2009-10-30 K. Sfetsos , K. Skenderis

We investigate the inclusion of 10-dimensional string loop corrections to the entropy function of two-charge extremal small black holes of the heterotic string theory compactified on S^1 x T^5 and show that the entropy is given by…

High Energy Physics - Theory · Physics 2010-02-03 Aninda Sinha , Nemani V. Suryanarayana

We computed the statistical entropy of nonextremal 4D and extremal 5D Calabi-Yau black holes and found exact agreement with the Bekenstein-Hawking entropy. The computation is based on the fact that the near-horizon geometry of equivalent…

High Energy Physics - Theory · Physics 2016-08-25 Mikhail Z. Iofa , Leopoldo A. Pando Zayas

We discuss a previous attempt at a microscopic counting of the entropy of asymptotically flat non-extremal black-holes. This method used string dualities to relate 4 and 5 dimensional black holes to the BTZ black hole. We show how the…

High Energy Physics - Theory · Physics 2008-11-26 Assaf Shomer

We calculate the statistical mechanical entropy associated with boundary terms in the two-dimensional Euclidean black holes in deSitter gravity.

General Relativity and Quantum Cosmology · Physics 2008-02-03 J. Gegenberg , G. Kunstatter , T. Strobl

We derive the Bekenstein-Hawking entropy formula for four-dimensional Reissner-Nordstrom extremal black holes in type II string theory. The derivation is performed in two separate (T-dual) weak coupling pictures. One uses a type IIB bound…

High Energy Physics - Theory · Physics 2009-07-09 Clifford V. Johnson , Ramzi R. Khuri , Robert C. Myers

We present a microscopical derivation of the entropy of the black hole solutions of the Jackiw-Teitelboim theory. We show that the asymptotic symmetry of two-dimensional (2D) Anti-de Sitter space is generated by a central extension of the…

High Energy Physics - Theory · Physics 2009-12-30 Mariano Cadoni , Salvatore Mignemi

A black hole solution to low energy type IIA string theory which is extremal, non-supersymmetric, and carries 0- and 6-brane charge is presented. For large values of the charges it is metastable and a corresponding D-brane picture can be…

High Energy Physics - Theory · Physics 2016-08-25 Harrison J. Sheinblatt

Four-dimensional magnetic black holes including dilaton and abelian gauge fields which are solutions of supergravity can also be obtained by dimensional reduction of the Einstein-Maxwell gravity in five dimensions. In the extremal case the…

High Energy Physics - Theory · Physics 2009-10-31 Mikhail Z. Iofa , Leopoldo A. Pando Zayas

We compute the statistical entropy of the three charge (D1-D5-p) five dimensional black hole to sub-leading order in a large charge expansion. We find an agreement with the macroscopic calculation of the Wald entropy in R^2 corrected…

High Energy Physics - Theory · Physics 2009-06-25 Alejandra Castro , Sameer Murthy

We identify the states in string theory which are responsible for the entropy of near-extremal rotating four-dimensional black holes in $N=8$ supergravity. For black holes far from extremality (with no rotation), the Bekenstein-Hawking…

High Energy Physics - Theory · Physics 2016-08-24 G. T. Horowitz , D. A. Lowe , J. M. Maldacena

The exact entropy of two-charge supersymmetric black holes in N=4 string theories is computed to all orders using Wald's formula and the supersymmetric attractor equations with an effective action that includes the relevant higher curvature…

High Energy Physics - Theory · Physics 2009-11-10 Atish Dabholkar

String theory is used to count microstates of four-dimensional extremal black holes in compactifications with $N=4$ and $N=8$ supersymmetry. The result agrees for large charges with the Bekenstein-Hawking entropy.

High Energy Physics - Theory · Physics 2009-09-17 Juan Maldacena , Andrew Strominger

We review work done over the last years on the macroscopic and microscopic entropy of supersymmetric black holes in fourdimensional N=2 supergravity and in N=2 compactifications of string theory and M-theory. Particular emphasis is put on…

High Energy Physics - Theory · Physics 2016-10-26 Thomas Mohaupt

We consider general black holes in D=5, N=2 supergravity coupled to vector multiplets, and discuss the issue of microstate counting from various viewpoints. The statistical entropy is computed for the near-extremal case using the central…

High Energy Physics - Theory · Physics 2009-10-31 S. Cacciatori , D. Klemm , W. A. Sabra , D. Zanon

The quantum corrections to the counting of statistical entropy for the 5+1-dimensional extremal black string in type-IIB supergravity with two observers are studied using anomalous Wess-Zumino actions for the corresponding intersecting…

High Energy Physics - Theory · Physics 2011-09-13 David D. Song , Richard J. Szabo
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