Data di Pubblicazione:
2010
Citazione:
Magnetic charges in the AdS(4) superalgebra osp(4|2) / G. Dibitetto, D. Klemm. - In: JOURNAL OF HIGH ENERGY PHYSICS. - ISSN 1029-8479. - 2010:12(2010), pp. 005.005.1-005.005.14. [10.1007/JHEP12(2010)005]
Abstract:
We discuss the issue of how to include magnetic charges in the AdS4 superalgebra
osp(4|2). It is shown that the usual way of introducing a pseudoscalar central
charge on the right hand side of the basic anticommutator does not work, because this
breaks SO(2, 3) covariance. We propose a way out by promoting the magnetic charge to a
vector charge, which amounts to enlarge osp(4|2) to the superconformal algebra su(2, 2|1).
The conditions for 1/4, 1/2 and 3/4 BPS states are then analyzed. These states form the
boundary of the convex cone associated with the Jordan algebra of 4×4 complex hermitian
matrices. An In¨on¨u-Wigner contraction of the constructed superalgebra yields a known
extension of the Poincar´e superalgebra containing electric and magnetic 0-brane charges
as well as string- and space-filling 3-brane charges. As an example, we show how some
supersymmetric AdS4 black holes fit into the classification scheme of BPS states.
Tipologia IRIS:
01 - Articolo su periodico
Keywords:
Extended supersymmetry ; AdS-CFT correspondence ; black holes
Elenco autori:
G. Dibitetto, D. Klemm
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