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Weyl-Invariant Lightlike Branes and Soldering of Black Hole Space-Times

We consider self-consistent coupling of the recently introduced new class of Weyl-conformally invariant lightlike branes (WILL-branes) to D=4 Einstein-Maxwell system plus a D=4 three-index antisymmetric tensor gauge field. We find static spherically-symmetric solutions where the space-time consists of two regions with different black-hole-type geometries and different values for a dynamically generated cosmological constant, separated by the WILL-brane which ``straddles'' their common event horizon. Furthermore, the WILL-brane produces a potential ``well'' around itself acting as a trap for test particles falling towards the horizon.

preprint2006arXivOpen access
Eduardo GuendelmanAlexander KaganovichEmil NissimovSvetlana Pacheva
gr-qchep-th
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Eduardo GuendelmanAlexander KaganovichEmil NissimovSvetlana Pacheva

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