Abstract
We systematically develop the metric aspects of nonassociative differential geometry tailored to the parabolic phase space model of constant locally non-geometric closed string vacua, and use it to construct preliminary steps towards a nonassociative theory of gravity on spacetime. We obtain explicit expressions for the torsion, curvature, Ricci tensor and Levi-Civita connection in nonassociative Riemannian geometry on phase space, and write down Einstein field equations. We apply this formalism to construct R-flux corrections to the Ricci tensor on spacetime, and comment on the potential implications of these structures in non-geometric string theory and double field theory.
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Aschieri, P., Ćirić, M.D. & Szabo, R.J. Nonassociative differential geometry and gravity with non-geometric fluxes. J. High Energ. Phys. 2018, 36 (2018). https://doi.org/10.1007/JHEP02(2018)036
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DOI: https://doi.org/10.1007/JHEP02(2018)036