Weyl-invariant lightlike branes and soldering of black hole space-times

E. I. Guendelman, A. Kaganovich, E. Nissimov, S. Pacheva

Research output: Contribution to journalArticlepeer-review

11 Scopus citations


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.

Original languageEnglish
Pages (from-to)579-584
Number of pages6
JournalFortschritte der Physik
Issue number5-7
StatePublished - 1 May 2007


  • Black holes
  • Lightlike branes
  • Weyl-conformal invariance

ASJC Scopus subject areas

  • Physics and Astronomy (all)


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