Black - Hole Attractors in N = 1 Supergravity
نویسندگان
چکیده
We study the attractor mechanism for N = 1 supergravity coupled to vector and chiral multiplets and compute the attractor equations of these theories. These equations may have solutions depending on the choice of the holomorphic symmetric matrix f ΛΣ which appears in the kinetic lagrangian of the vector sector. Models with non trivial electric-magnetic duality group which have or have not attractor behavior are exhibited. For a particular class of models, based on an N = 1 reduction of homogeneous special geometries, the attractor equations are related to the theory of pure spinors.
منابع مشابه
ar X iv : h ep - t h / 06 03 24 7 v 2 2 4 M ay 2 00 6 On N = 8 attractors
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 geometry to all extended supergravities with N > 2. There are two classes of solutions for regular black holes, one for 1/8 BPS ones and one for the non-BPS. ...
متن کاملAttractors in Black
We review recent results in the study of attractor horizon geometries (with nonvanishing 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 nV of Abelian vector multiplets, outlining the fundamentals of the special Kähler geometry of the vector multiplets’ scalar manifold (of complex dimension nV )...
متن کاملAttractors with Vanishing Central Charge
We consider the Attractor Equations of particular N = 2, d = 4 supergravity models whose vector multiplets’ scalar manifold is endowed with homogeneous symmetric cubic special Kähler geometry, namely of the so-called st2 and stu models. In this framework, we derive explicit expressions for the critical moduli corresponding to non-BPS attractors with vanishing N = 2 central charge. Such formulæ ...
متن کاملExtremal Black Hole and Flux Vacua Attractors
These lectures provide a pedagogical, introductory review of the so-called Attractor Mechanism (AM) at work in two different 4-dimensional frameworks: extremal black holes in N = 2 supergravity and N = 1 flux compactifications. In the first case, AM determines the stabilization of scalars at the black hole event horizon purely in terms of the electric and magnetic charges, whereas in the second...
متن کاملAttractor Horizon Geometries of Extremal Black Holes
We report on recent advances in the study of critical points of the “black hole effective potential” VBH (usually named attractors) of N = 2, d = 4 supergravity coupled to nV Abelian vector multiplets, in an asymptotically flat extremal black hole background described by 2nV + 2 dyonic charges and (complex) scalar fields which are coordinates of an nV -dimensional Special Kähler manifold.
متن کاملSAM Lectures on Extremal Black Holes in d = 4 Extended Supergravity
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 Bekenstein-Hawking entropy are discussed. They correspond to three (inequivalent) classes of orbits of the charge vector, which sits in the relevant sym...
متن کامل