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2009

Einstein-Rosen "Bridge" Needs Lightlike Brane Source

Guendelman, Eduardo, Kaganovich, Alexander, Nissimov, Emil et al.

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The Einstein-Rosen "bridge" wormhole solution proposed in the classic paper [1] does not satisfy the vacuum Einstein equations at the wormhole throat.

We show that the fully consistent formulation of the original Einstein-Rosen "bridge" requires solving Einstein equations of bulk D=4 gravity coupled to a lightlike brane with a well-defined world-volume action.
The non-vanishing contribution of Einstein-Rosen "bridge" solution to the right hand side of Einstein equations at the throat matches precisely the surface stress-energy tensor of the lightlike brane which automatically occupies the throat ("horizon straddling") - a feature triggered by the world-volume lightlike brane dynamics.

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E. Guendelman, A. Kaganovich, E. Nissimov and S. Pacheva, arxiv:0904.0401[hep-th]

Cited in the paper.

E. Guendelman, A. Kaganovich, E. Nissimov and S. Pacheva, Centr. Europ. Journ. Phys

2009

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