| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 8199335 | Physics Letters B | 2006 | 9 Pages |
Abstract
Background solutions in the canonical sectors, which have regular dynamics with maximal number of degrees of freedom, are shown to exist. Within this class, explicit solutions given by locally AdS spacetimes with nontrivial gauge fields are constructed, and BPS states are identified. It is shown that the charge algebra acquires a central extension due to the presence of the matter fields. The Bogomol'nyi bound for these charges is discussed. Special attention is devoted to the N=4 case since then the gauge group has a U(1) central charge and the phase space possesses additional irregular sectors.
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Authors
Olivera MiÅ¡koviÄ, Ricardo Troncoso, Jorge Zanelli,