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T-duality without isometry via extended gauge symmetries of 2D sigma models
Journal of High Energy Physics
Target space duality is one of the most profound properties of string theory. However it customarily requires that the background fields satisfy certain invariance conditions in order to perform it consistently; for instance the vector fields along the directions that T-duality is performed have to generate isometries. In the present paper we examine in detail the possibility to perform T-duality along non-isometric directions. In particular, based on a recent work of Kotov and Strobl, we studydoi:10.1007/jhep01(2016)154 fatcat:b3ongwskg5fqbb2mndyy43727y