Space-time compactification/decompactification transitions via lightlike branes

作者：Guendelman Eduardo; Kaganovich Alexander^*; Nissimov Emil; Pacheva Svetlana

来源：General Relativity and Gravitation, 2011, 43(5): 1487-1513.

DOI：10.1007/s10714-010-1134-x

• Traversable wormholes
• Lightlike branes
• Dynamical brane tension
• Black hole's horizon &quot
• straddling&quot
• Induced compactification
• Induced decompactification

We consider Einstein-Maxwell-Kalb-Ramond gravity-matter system in bulk space-time interacting self-consistently with two (widely separated) codimension-one electrically charged lightlike branes. The lightlike brane dynamics is explicitly given by manifestly reparametrization invariant world-volume actions in two equivalent dual to each other formulations (Polyakov-type and Nambu-Goto-type ones) proposed in our previous work. We find an explicit solution of the pertinent Einstein-Maxwell-Kalb-Ramond-lightlike-brane equations of motion describing a "two-throat" wormhole-like space-time consisting of a "left" compactified Bertotti-Robinson universe connected to a "middle" non-compact Reissner-Nordstrom- de-Sitter space-time region, which in turn is connected to another "right" compactified Bertotti-Robinson universe. Each of the lightlike branes automatically occupies one of the "throats", so that they dynamically induce a sequence of spontaneous space-time compactification/decompactification transitions.

• 出版日期2011-5