Asymmetric Wormholes via Electrically Charged Lightlike Branes. (arXiv:0911.0940v1 [hep-th])

We consider a self-consistent Einstein-Maxwell-Kalb-Ramond system in the bulkD=4 space-time interacting with a variable-tension electrically chargedlightlike brane. The latter serves both as a material and charge source forgravity and electromagnetism, as well as it dynamically generates a bulk spacevarying cosmological » Full text »