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Blumenhagen, Ralph; Fuchs, Michael; Hassler, Falk; Lüst, Dieter und Sun, Rui (2014): Non-associative deformations of geometry in double field theory. In: Journal of High Energy Physics, Bd. 4, 141 [PDF, 601kB]

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Abstract

Non-geometric string backgrounds were proposed to be related to a nonassociative deformation of the space-time geometry. In the flux formulation of double field theory (DFT), the structure of mathematically possible non-associative deformations is analyzed in detail. It is argued that on-shell there should not be any violation of associativity in the effective DFT action. For imposing either the strong or the weaker closure constraint we discuss two possible non-associative deformations of DFT featuring two different ways how on-shell associativity can still be kept.

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