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arXiv · hep-th/0507204

Worldsheet Instanton Corrections to the Kaluza-Klein Monopole

Jeffrey A. Harvey·Steuard Jensen
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Abstract

The Kaluza-Klein monopole is a well known object in both gravity and string theory, related by T-duality to a "smeared" NS5-brane which retains the isometry around the duality circle. As the true NS5-brane solution is localized at a point on the circle, duality implies that the Kaluza-Klein monopole should show some corresponding behavior. In this paper, we express the Kaluza-Klein monopole as a gauged linear sigma model in two dimensions and show that worldsheet instantons give corrections to its geometry. These corrections can be understood as a localization in "winding space" which could be probed by strings with winding charge around the circle.

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Jeffrey A. Harvey, Steuard Jensen. 2005-10-11. Worldsheet Instanton Corrections to the Kaluza-Klein Monopole. https://doi.org/10.1088/1126-6708%2F2005%2F10%2F028

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