Duality Covariant Formulation of Extended Supergravity: Central Charges, BPS States and Black-Hole Entropy
✍ Scribed by Laura Andrianopoli; Riccardo D'Auria; Sergio Ferrara
- Publisher
- John Wiley and Sons
- Year
- 1998
- Tongue
- English
- Weight
- 439 KB
- Volume
- 46
- Category
- Article
- ISSN
- 0015-8208
No coin nor oath required. For personal study only.
✦ Synopsis
In these lectures we give a geometrical formulation of N-extended supergravities which generalizes N 2 special geometry of N 2 theories.
In all these theories duality symmetries are related to the notion of ªflat symplectic bundlesº and central charges may be defined as ªsectionsº over these bundles. Attractor points giving rise to ªfixed scalarsº of the horizon geometry and Bekenstein-Hawking entropy formula for extremal black-holes are discussed in some details.
📜 SIMILAR VOLUMES
The derivation of absolute (moduli-independent) U-invariants for all N > 2 extended supergravities at D = 4 in terms of (moduli-dependent) central and matter charges is reported. These invariants give a general denition of the \topological" Bekenstein{Hawking entropy formula for extremal black-holes