Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2009-01-28
Fortschr.Phys.57:566-572,2009
Physics
High Energy Physics
High Energy Physics - Theory
Contribution to 4th RTN "Forces-Universe" Workshop, Varna (Sept. 2008)
Scientific paper
10.1002/prop.200900018
We first briefly present a consistent world-volume Lagrangian description of lightlike p-branes (LL-branes) in two equivalent forms - a Polyakov-type and a dual to it Nambu-Goto-type formulations. The most important characteristic features of LL-brane dynamics are: (i) the brane tension appears as a non-trivial additional dynamical degree of freedom; (ii) consistency of LL-brane dynamics in a spherically or axially symmetric gravitational background of codimension one requires the presence of an event horizon which is automatically occupied by the LL-brane ("horizon straddling"). Next we consider a bulk Einstein-Maxwell system interacting self-consistently with a codimension one LL-brane. We find spherically symmetric traversable wormhole solutions of Misner-Wheeler type produced by the LL-brane sitting at the wormhole throat with wormhole parameters being functions of the dynamical LL-brane tension.
Guendelman Eduardo
Kaganovich Alexander
Nissimov Emil
Pacheva Svetlana
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