M Theory, Type IIA Superstrings, and Elliptic Cohomology

Details M Theory, Type IIA Superstrings, and Elliptic Cohomology M Theory, Type IIA Superstrings, and Elliptic Cohomology

2004-04-02

arxiv.org/abs/hep-th/0404013v3

Adv.Theor.Math.Phys. 8 (2004) 345-395

Physics

High Energy Physics

High Energy Physics - Theory

51 pages, latex2e, typos corrected. Published version

Scientific paper

The topological part of the M-theory partition function was shown by Witten to be encoded in the index of an E8 bundle in eleven dimensions. This partition function is, however, not automatically anomaly-free. We observe here that the vanishing W_7=0 of the Diaconescu-Moore-Witten anomaly in IIA and compactified M-theory partition function is equivalent to orientability of spacetime with respect to (complex-oriented) elliptic cohomology. Motivated by this, we define an elliptic cohomology correction to the IIA partition function, and propose its relationship to interaction between 2-branes and 5-branes in the M-theory limit.

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