Orbits of Exceptional Groups, Duality and BPS States in String Theory
| dc.creator | Ferrara, Sergio | |
| dc.creator | Gunaydin, Murat | |
| dc.date | 1997-08-05 | |
| dc.date | 1997-09-16 | |
| dc.date.accessioned | 2026-07-07T10:58:55Z | |
| dc.date.available | 2026-07-07T10:58:55Z | |
| dc.description | We give an invariant classification of orbits of the fundamental representations of exceptional groups $E_{7(7)}$ and $E_{6(6)}$ which classify BPS states in string and M theories toroidally compactified to d=4 and d=5. The exceptional Jordan algebra and the exceptional Freudenthal triple system and their cubic and quartic invariants play a major role in this classification. The cubic and quartic invariants correspond to the black hole entropy in d=5 and d=4, respectively. The classification of BPS states preserving different numbers of supersymmetries is in close parallel to the classification of the little groups and the orbits of timelike, lightlike and space-like vectors in Minkowski space. The orbits of BPS black holes in N=2 Maxwell-Einstein supergravity theories in d=4 and d=5 with symmetric space geometries are also classified including the exceptional N=2 theory that has $E_{7(-25)}$ and $E_{6(-26)}$ as its symmety in the respective dimensions. | |
| dc.description | New references and two tables added, a new section on the orbits of N=2 Maxwell-Einstein supergravity theories in d=4 and d=5 included and some minor changes were made in other sections. 17 pages. Latex file | |
| dc.identifier | https://arxiv.org/abs/hep-th/9708025 | |
| dc.identifier | http://arxiv.org/abs/hep-th/9708025 | |
| dc.identifier | Int.J.Mod.Phys.A13:2075-2088,1998 | |
| dc.identifier | doi:10.1142/S0217751X98000913 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/187271 | |
| dc.subject | High Energy Physics - Theory | |
| dc.title | Orbits of Exceptional Groups, Duality and BPS States in String Theory | |
| dc.type | text |