No manifest T-duality at alpha'^3

Abstract: T-duality leads to a (continuous) O(d,d) symmetry of the tree-level closed string effective action reduced from D=10 to 10-d. However, this symmetry appears only after certain field redefinitions. I will argue that when the $\alpha^{\prime \,3}$ correction is included these field redefinitions cannot be lifted to ten dimensions. This poses a problem for approaches like generalized geometry and double field theory, which assume an O(d,d) structure is present before reduction.

astrophysicsgeneral relativity and quantum cosmologyHEP - theorymathematical physics

Audience: researchers in the discipline

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