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    Magnetic mass in 4D AdS gravity

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    TEXTO COMPLETO INGLES (214.4Kb)
    Date
    2016-04
    Author
    Araneda, René
    Aros, Rodrigo
    Miskovic, Olivera
    Olea, Rodrigo
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    Abstract
    We provide a fully covariant expression for the diffeomorphic charge in four-dimensional anti-de Sitter gravity, when the Gauss-Bonnet and Pontryagin terms are added to the action. The couplings of these topological invariants are such that the Weyl tensor and its dual appear in the on-shell variation of the action and such that the action is stationary for asymptotic (anti-)self-dual solutions in the Weyl tensor. In analogy with Euclidean electromagnetism, whenever the self-duality condition is global, both the action and the total charge are identically vanishing. Therefore, for such configurations, the magnetic mass equals the Ashtekhar-Magnon-Das definition.
    URI
    http://repositorio.unab.cl/xmlui/handle/ria/1567
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