Variable-tension lightlike brane as a gravitational source of traversable Misner-Wheeler-type wormholes

Eduardo Guendelman, Alexander Kaganovich, Emil Nissimov, Svetlana Pacheva

Research output: Contribution to journalArticlepeer-review

15 Scopus citations


Consistent Lagrangian description of variable-tension lightlike p-branes (LL-branes) is presented in two equivalent forms - a Polyakov-type formulation and a dual to it Nambu-Goto-type formulation. An important and non-standard characteristic feature of the LL-branes is that the brane tension appears as a non-trivial additional dynamical degree of freedom. We consider properties of p = 2 LL-brane dynamics (as a test brane) in D = 4 Kerr or Kerr-Newman gravitational backgrounds in some detail. It is shown that the LL-brane automatically positions itself on the horizon and rotates along with the same angular velocity. Finally, we construct explicitly a traversable wormhole of Misner-Wheeler type based on a Reissner-Nordström geometry. This wormhole is constructed as a self-consistent solution of the electrically sourceless Einstein-Maxwell system in the D = 4 bulk interacting with a LL-brane. The pertinent wormhole throat is located precisely at the LL-brane sitting on the outer Reissner-Nordström horizon with the Reissner-Nordström mass and charge being functions of the dynamical LL-brane tension.

Original languageEnglish
Pages (from-to)288-292
Number of pages5
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Issue number4-5
StatePublished - 30 Mar 2009


  • Black hole's horizon "straddling"
  • Dynamical brane tension
  • Non-Nambu-Goto lightlike p-branes
  • Traversable Misner-Wheeler wormholes

ASJC Scopus subject areas

  • Nuclear and High Energy Physics


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