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Over the past few years the understanding of the microscopic theory of black hole entropy has made important conceptual progress by recognizing that the degeneracies are encoded in partition functions which are determined by higher rank…

High Energy Physics - Theory · Physics 2015-06-18 Rolf Schimmrigk

We compute the spectrum of quarter BPS dyons in freely acting Z_2 and Z_3 orbifolds of type II string theory compactified on a six dimensional torus. For large charges the result for statistical entropy computed from the degeneracy formula…

High Energy Physics - Theory · Physics 2009-11-11 Justin R. David , Dileep P. Jatkar , Ashoke Sen

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 conjecture that the Fourier coefficients of a degree three Siegel form, $1/\sqrt{\chi_{18}}$, count the degeneracy of three-center BPS bound states in type II string theory compactified on $K3 \times T^2$. We provide evidence for our…

High Energy Physics - Theory · Physics 2017-12-07 Frederik Denef , Shamit Kachru , Zimo Sun , Arnav Tripathy

[abridged version] We study extremal solutions arising in M-theory compactifications on Calabi-Yau threefolds, focussing on non-BPS attractors for their importance in relation to the Weak Gravity Conjecture. In the low-energy/field theory…

High Energy Physics - Theory · Physics 2022-02-15 Alessio Marrani , Anshul Mishra , Prasanta K. Tripathy

We study both the "large" and "small" U-duality charge orbits of extremal black holes appearing in D = 5 and D = 4 Maxwell-Einstein supergravity theories with symmetric scalar manifolds. We exploit a formalism based on cubic Jordan algebras…

High Energy Physics - Theory · Physics 2012-07-11 L. Borsten , M. J. Duff , S. Ferrara , A. Marrani , W. Rubens

We perform a consistent reduction of 6d matter-coupled F(4) supergravity on a compact Riemann surface $\Sigma_\mathfrak{g}$ of genus $\mathfrak{g}$, at the level of the bosonic action. The result is an $\mathcal{N}=2$ gauged supergravity…

High Energy Physics - Theory · Physics 2021-11-05 Seyed Morteza Hosseini , Kiril Hristov

Using recent results in four-derivative 5d $\mathcal{N}=2$ minimal gauged supergravity, we evaluate the regularized on-shell action of the Euclidean solution in this theory that admits a Lorentzian continuation to an AdS$_5$ black hole with…

High Energy Physics - Theory · Physics 2023-01-04 Nikolay Bobev , Vasil Dimitrov , Valentin Reys , Annelien Vekemans

We connect the attractor equations of a certain class of N=2, d=5 supergravities with their (1,0), d=6 counterparts, by relating the moduli space of non-BPS d=5 black hole/black string attractors to the moduli space of extremal dyonic black…

High Energy Physics - Theory · Physics 2008-11-26 L. Andrianopoli , S. Ferrara , A. Marrani , M. Trigiante

We find extremal four dimensional black holes with finite area constructed entirely from intersecting D-branes. We argue that the microscopic degeneracy of these configurations agrees with the Bekenstein-Hawking entropy formula. The absence…

High Energy Physics - Theory · Physics 2011-05-05 Vijay Balasubramanian , Finn Larsen

We examine five-dimensional $\mathcal N=2$ gauged supergravity including terms up to four derivatives. These additional terms correspond to the supersymmetric completion of $R^2$, and were originally obtained in hep-th/0611329 using…

High Energy Physics - Theory · Physics 2015-05-13 Sera Cremonini , Kentaro Hanaki , James T. Liu , Phillip Szepietowski

Dyonic 1/4-BPS states in Type IIB string theory compactified on $\mathrm{K}3 \times T^2$ are counted by meromorphic Jacobi forms. The finite parts of these functions, which are mixed mock Jacobi forms, account for the degeneracy of states…

High Energy Physics - Theory · Physics 2017-09-13 Francesca Ferrari , Valentin Reys

We extend the analysis of arXiv:0801.4457 [hep-th] to charged black hole solutions of four-dimensional $U(1)^4$ gauged supergravity which carry three charges. There are two decoupling near-horizon limits, one over the near-BPS black hole…

High Energy Physics - Theory · Physics 2010-04-06 R. Fareghbal , C. N. Gowdigere , A. E. Mosaffa , M. M. Sheikh-Jabbari

We study 5d supersymmetric black holes which descend from strings of generic $\mathcal{N}=(1,0)$ supergravity in 6d. These strings have an F-theory realization in 6d as D3 branes wrapping smooth genus $g$ curves in the base of elliptic…

High Energy Physics - Theory · Physics 2016-01-27 Babak Haghighat , Sameer Murthy , Cumrun Vafa , Stefan Vandoren

In string theory, black holes can be made from brane systems that are partially delocalized in string theory's extra dimensions. It is expected that they correspond to an ensemble of pure, horizonless microstates sourced by localized…

High Energy Physics - Theory · Physics 2024-05-22 Ben Eckardt

Stationary, spherically symmetric solutions of N=2 supergravity in 3+1 dimensions have been shown to correspond to holomorphic curves on the twistor space of the quaternionic-K\"ahler space which arises in the dimensional reduction along…

High Energy Physics - Theory · Physics 2011-03-02 Yann Michel , Boris Pioline , Clement Rousset

We establish the relation between the structure governing supersymmetric and non-supersymmetric four- and five-dimensional black holes and multicenter solutions and Calabi-Yau flux compactifications of M-theory and type IIB string theory.…

High Energy Physics - Theory · Physics 2015-06-05 Iosif Bena , Hagen Triendl , Bert Vercnocke

We calculate alpha'^2-corrections to the entropy of the 5-dimensional 3-charge and the 4-dimensional 4-charge large extremal black holes using the low energy effective action of the heterotic string theory. In the 4-dimensional case, our…

High Energy Physics - Theory · Physics 2009-05-20 Maro Cvitan , Predrag Dominis Prester , Andrej Ficnar

We present non-extreme generalisations of intersecting p-brane solutions of eleven-dimensional supergravity which upon toroidal compactification reduce to non-extreme static black holes in dimensions D=4, D=5 and 5<D<10, parameterized by…

High Energy Physics - Theory · Physics 2009-09-17 M. Cvetic , A. A. Tseytlin

We develop the thermodynamics of BPS and near-BPS AdS6 black holes. We study the phase diagram of BPS black holes in the grand canonical ensemble. We highlight two distinct deformations orthogonal to the BPS surface: (i) increasing the…

High Energy Physics - Theory · Physics 2022-06-17 Madhu Mishra , Amitabh Virmani