Space-time compactification/decompactification transitions via lightlike branes

Eduardo Guendelman, Alexander Kaganovich, Emil Nissimov, Svetlana Pacheva

Research output: Contribution to journalArticlepeer-review

7 Scopus citations


We consider Einstein-Maxwell-Kalb-Ramond gravity-matter system in bulk space-time interacting self-consistently with two (widely separated) codimension-one electrically charged lightlike branes. The lightlike brane dynamics is explicitly given by manifestly reparametrization invariant world-volume actions in two equivalent dual to each other formulations (Polyakov-type and Nambu-Goto-type ones) proposed in our previous work. We find an explicit solution of the pertinent Einstein-Maxwell-Kalb-Ramond-lightlike-brane equations of motion describing a "two-throat" wormhole-like space-time consisting of a "left" compactified Bertotti-Robinson universe connected to a "middle" non-compact Reissner-Nordström- de-Sitter space-time region, which in turn is connected to another "right" compactified Bertotti-Robinson universe. Each of the lightlike branes automatically occupies one of the "throats", so that they dynamically induce a sequence of spontaneous space-time compactification/decompactification transitions.

Original languageEnglish
Pages (from-to)1487-1513
Number of pages27
JournalGeneral Relativity and Gravitation
Issue number5
StatePublished - 1 May 2011


  • Black hole's horizon "straddling"
  • Dynamical brane tension
  • Induced compactification
  • Induced decompactification
  • Lightlike branes
  • Traversable wormholes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)


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