English
Related papers

Related papers: Attractors with Vanishing Central Charge

200 papers

We study the ``flat'' directions of non-BPS extremal black hole attractors for N=2, d=4 supergravities whose vector multiplets' scalar manifold is endowed with homogeneous symmetric special Kahler geometry. The non-BPS attractors with…

High Energy Physics - Theory · Physics 2008-11-26 S. Ferrara , A. Marrani

We review recent results in the study of attractor horizon geometries (with non-vanishing Bekenstein-Hawking entropy) of dyonic extremal d=4 black holes in supergravity. We focus on N=2, d=4 ungauged supergravity coupled to a number n_{V}…

High Energy Physics - Theory · Physics 2008-11-26 S. Bellucci , S. Ferrara , A. Marrani

We review some aspects of the attractor mechanism for extremal black holes of (not necessarily supersymmetric) theories coupling Einstein gravity to scalars and Maxwell vector fields. Thence, we consider N=2 and N=8, d=4 supergravities,…

High Energy Physics - Theory · Physics 2008-11-26 S. Ferrara , A. Marrani

We report on recent results in the study of extremal black hole attractors in N=2, d=4 ungauged Maxwell-Einstein supergravities. For homogeneous symmetric scalar manifolds, the three general classes of attractor solutions with non-vanishing…

High Energy Physics - Theory · Physics 2018-07-25 S. Bellucci , S. Ferrara , M. Gunaydin , A. Marrani

We study the critical points of the black hole scalar potential $V_{BH}$ in N=2, d=4 supergravity coupled to $n_{V}$ vector multiplets, in an asymptotically flat extremal black hole background described by a 2(n_{V}+1)-dimensional dyonic…

High Energy Physics - Theory · Physics 2009-11-11 Stefano Bellucci , Sergio Ferrara , Murat Gunaydin , Alessio Marrani

The attractor mechanism for the four-dimensional ${\cal N}=2$ supergravity black hole solution is analyzed in the case of the D0-D4 system. Our analyses are based on newly derived exact solutions, which exhibit explicitly the attractor…

High Energy Physics - Theory · Physics 2008-11-26 Kyosuke Hotta , Takahiro Kubota

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

Using the general recipe given in arXiv:0804.0009, where all timelike supersymmetric solutions of N=2, D=4 gauged supergravity coupled to abelian vector multiplets were classified, we construct the first examples of genuine supersymmetric…

High Energy Physics - Theory · Physics 2015-05-14 Sergio L. Cacciatori , Dietmar Klemm

We consider Bekenstein-Hawking entropy and attractors in extremal BPS black holes of $\mathcal{N}=2$, $D=4$ ungauged supergravity obtained as reduction of minimal, matter-coupled $D=5$ supergravity. They are generally expressed in terms of…

High Energy Physics - Theory · Physics 2022-11-29 Bert van Geemen , Alessio Marrani , Francesco Russo

We consider a deformation of the well-known stu model of $N=2$, $D=4$ supergravity, characterized by a non-homogeneous special K\"{a}hler manifold, and by the smallest electric-magnetic duality Lie algebra consistent with its upliftability…

High Energy Physics - Theory · Physics 2015-07-21 Dietmar Klemm , Alessio Marrani , Nicolò Petri , Camilla Santoli

In this paper we analyse non-supersymmetric single centred extremal black hole solutions in N=2 supergravity theory coupled to $n$ vector multiplets with purely cubic pre-potential in four dimensions. We consider the algebraic attractor…

High Energy Physics - Theory · Physics 2017-05-03 Prasanta K. Tripathy

We derive and solve the black hole attractor conditions of N=8 supergravity by finding the critical points of the corresponding black hole potential. This is achieved by a simple generalization of the symplectic structure of the special…

High Energy Physics - Theory · Physics 2016-09-06 Sergio Ferrara , Renata Kallosh

The general solutions of the radial attractor flow equations for extremal black holes, both for non-BPS with non-vanishing central charge Z and for Z=0, are obtained for the so-called stu model, the minimal rank-3 N=2 symmetric supergravity…

High Energy Physics - Theory · Physics 2015-05-13 S. Bellucci , S. Ferrara , A. Marrani , A. Yeranyan

BPS and non-BPS orbits for extremal black-holes in N=2 Maxwell-Einstein supergravity theories (MESGT) in five dimensions were classified long ago by the present authors for the case of symmetric scalar manifolds. Motivated by these results…

High Energy Physics - Theory · Physics 2008-11-26 Sergio Ferrara , Murat Gunaydin

We study the BPS and non BPS black attractors in 7D N=2 supergravity embedded in 11D M-theory compactified on K3. Combining Kahler and complex moduli in terms of SO(3) representations, we build the Dalbeault like (DL) basis for the second…

High Energy Physics - Theory · Physics 2008-02-14 El Hassan Saidi

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…

High Energy Physics - Theory · Physics 2012-12-12 Raju Roychowdhury

We develop some properties of the non-BPS attractive STU black hole. Our principle result is the construction of exact solutions for the moduli, the metric and the vectors in terms of appropriate harmonic functions. In addition, we find a…

High Energy Physics - Theory · Physics 2008-11-26 Renata Kallosh , Navin Sivanandam , Masoud Soroush

We derive new algebraic attractor equations describing supersymmetric flux vacua of type IIB string theory. The first term in these equations, proportional to the gravitino mass (the central charge), is similar to the attractor equations…

High Energy Physics - Theory · Physics 2011-05-05 Renata Kallosh

We study mathematical structures on the moduli spaces of BPS structures of $\mathcal{N}=2$ theories. Guided by the realization of BPS structures within type IIB string theory on non-compact Calabi-Yau threefolds, we develop a notion of BPS…

High Energy Physics - Theory · Physics 2023-09-01 Murad Alim , Florian Beck , Anna Biggs , Daniel Bryan

We consider extremal black hole attractors (both BPS and non-BPS) for N=3 and N=5 supergravity in d=4 space-time dimensions. Attractors for matter-coupled N=3 theory are similar to attractors in N=2 supergravity minimally coupled to Abelian…

High Energy Physics - Theory · Physics 2009-02-20 S. Ferrara , A. Gnecchi , A. Marrani
‹ Prev 1 2 3 10 Next ›