On global anomalies in type IIB string theory

Details On global anomalies in type IIB string theory On global anomalies in type IIB string theory

2011-09-20

arxiv.org/abs/1109.4385v1

Physics

High Energy Physics

High Energy Physics - Theory

42 pages, comments welcome

Scientific paper

We study global gravitational anomalies in type IIB string theory with nontrivial middle cohomology. This requires the study of the action of diffeomorphisms on this group. Several results and constructions, including some recent vanishing results via elliptic genera, make it possible to consider this problem. Along the way, we describe in detail the intersection pairing and the action of diffeomorphisms, and highlight the appearance of various structures, including the Rochlin invariant and its variants on the mapping torus.

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