TL;DR
This paper explores the geometry of wrapped and intersecting fivebranes using null-gauged WZW models, revealing insights into gauge/gravity duality and the structure of fivebrane throats with AdS3 caps.
Contribution
It introduces a novel worldsheet string theory approach to analyze fivebrane geometries and their dual conformal field theories.
Findings
Effective geometry of fivebrane throats characterized
Linear dilaton backgrounds with AdS3 caps identified
Enhanced understanding of near-BPS spacetime CFT duals
Abstract
The near-horizon region of Neveu-Schwarz fivebranes provides interesting examples of gauge/gravity duality. We revisit the structure of wrapped and/or intersecting fivebranes using the tools of null-gauged WZW models in worldsheet string theory, revealing the effective geometry of the fivebrane throat in a variety of examples. Variant gaugings yield linear dilaton fivebrane throats with AdS3 caps, providing a wealth of information about the near-BPS structure of the corresponding spacetime CFT duals.
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