Stability of Einstein-Maxwell-Kalb-Ramond Wormholes

This paper investigates a particular type of wormhole. The wormhole solutions studied are obtained by sewing together two static, spherically symmetric, charged black-hole metrics at their horizons. The charged wormholes are in a background Kalb-Ramond field, which is the source of the necessary ten...

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Veröffentlicht in:arXiv.org 2015-10
Hauptverfasser: Cox, Paul H, Harms, Benjamin C, Hou, Shaoqi
Format: Artikel
Sprache:eng
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Zusammenfassung:This paper investigates a particular type of wormhole. The wormhole solutions studied are obtained by sewing together two static, spherically symmetric, charged black-hole metrics at their horizons. The charged wormholes are in a background Kalb-Ramond field, which is the source of the necessary tension in the gravitational field. The metric-tensor elements are studied by numerically solving Einstein's equations with stress-energy-tensor elements given by the combination of static electric and Kalb-Ramond fields. For a certain range of electric charge the tension is positive away from the wormhole throat, but the tension is negative near the throat, making it non-traversable. The wormholes are found to be quasi-stable against decay via gravitational instanton tunnelling.
ISSN:2331-8422
DOI:10.48550/arxiv.1510.00758