Spherically Symmetric and Rotating Wormholes Produced by Lightlike Branes - High Energy Physics - TheoryReport as inadecuate




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Abstract: Lightlike p-branes LL-branes with dynamical variable tension allow simpleand elegant Polyakov-type and dual to it Nambu-Goto-like world-volume actionformulations. Here we first briefly describe the dynamics of LL-branes as testobjects in various physically interesting gravitational backgrounds of blackhole type, including rotating ones. Next we show that LL-branes are theappropriate gravitational sources that provide proper matter energy momentumtensors in the Einstein equations of motion needed to generate traversablewormhole solutions, in particular, self-consistent cylindrical rotatingwormholes, with the LL-branes occupying their throats. Here a major role isbeing played by the dynamical LL-brane tension which turns out to be negativebut may be of arbitrary small magnitude. As a particular solution we obtaintraversable wormhole with Schwarzschild geometry generated by a LL-branepositioned at the wormhole throat, which represents the correct consistentrealization of the original Einstein-Rosen -bridge- manifold.



Author: Eduardo Guendelman, Alexander Kaganovich, Emil Nissimov, Svetlana Pacheva

Source: https://arxiv.org/







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