Supesymmetric traversable wormholes

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Andres Anabalon (Universidad Adolfo Ibáñez, Chile)
We study traversable wormhole
solutions in pure gauged $N\!=\!2$ supergravity with and without
electromagnetic fields, which are locally isometric under
$\mathrm{SO}(2,1)\!\times\!\mathrm{SO}(1,1)$. The model allows for
1/2-BPS wormhole solutions whose corresponding globally defined
Killing spinors are presented. A non-contractible cycle can be
obtained by compactifying one of the coordinates which leaves the
residual supersymmetry unaffected, although not all the isometries
will remain realized globally. The wormholes connect two asymptotic,
locally $\mathrm{AdS}_4$ regions and depend on certain electric and
magnetic charge parameters and, implicitly, on the range of the
compact coordinate around the throat. We provide an analysis of the
boundary of the spacetime and show that it can be either disconnected or not, depending on the values of the parameters in the metric. Finally, we show how that these space-times avoid a topological censorship theorem.