Worldsheet Instanton Corrections to Five-branes and Waves in Double Field Theory

Abstract

We make a comprehensive study on the string winding corrections to supergravity solutions in double field theory (DFT). We find five-brane and wave solutions of diverse codimensions in which the winding coordinates are naturally included. We discuss a physical interpretation of the winding coordinate dependence. The analysis based on the geometric structures behind the solutions leads to an interpretation of the winding dependence as string worldsheet instanton corrections. We also give a brief discussion on the origins of these winding corrections in gauged linear sigma model. Our analysis reveals that for every supergravity solution, one has DFT solutions that include string winding corrections.

arXiv comment37 pages, minor corrections from published version

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• Hyperkähler, Bi-hypercomplex, Generalized Hyperkähler Structures and T-duality
• Complex Structures, T-duality and Worldsheet Instantons in Born Sigma Models
• Five-brane Current Algebras in Type II String Theories
• Localization of Gauged Linear Sigma Model for KK5-branes
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• Exotic Branes from del Pezzo Surfaces
• World-volume Effective Theories of Locally Non-geometric Branes
• Optomechanical Accelerometer Search for Ultralight Dark Matter
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