Intersecting attractors

Journal Article · Sun Mar 15 00:00:00 EDT 2009 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.79.065031· OSTI ID:21260191

Ferrara, Sergio ^[1]; INFN-LNF, Frascati ^[2]; Marrani, Alessio ^[3]; Morales, Jose F ^[4]; Samtleben, Henning ^[5]

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1. Theory Division, CERN, Geneva (Switzerland)
2. Italy
3. INFN-LNF, Frascati (Italy)
4. INFN Sezione di Roma 'Tor Vergata', Roma (Italy)
5. Universite de Lyon, Laboratoire de Physique, ENS Lyon (France)

We apply the entropy formalism to the study of the near-horizon geometry of extremal black p-brane intersections in D>5-dimensional supergravities. The scalar flow towards the horizon is described in terms of an effective potential given by the superposition of the kinetic energies of all the forms under which the brane is charged. At the horizon active scalars get fixed to the minima of the effective potential and the entropy function is given in terms of U-duality invariants built entirely out of the black p-brane charges. The resulting entropy function reproduces the central charges of the dual boundary conformal field theory (CFT) and gives rise to a Bekenstein-Hawking-like area law. The results are illustrated in the case of black holes and black string intersections in D=6,7,8 supergravities where the effective potentials, attractor equations, moduli spaces, and entropy/central charges are worked out in full detail.

• OSTI ID: 21260191
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 6 Vol. 79; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ATTRACTORS
BLACK HOLES
CONFORMAL INVARIANCE
DUALITY
ENTROPY
EQUATIONS
KINETIC ENERGY
MANY-DIMENSIONAL CALCULATIONS
POTENTIALS
QUANTUM FIELD THEORY
SUPERGRAVITY