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arXiv · hep-th/0002027

On Ramond-Ramond fields and K-theory

D. S. Freed·M. J. Hopkins
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Abstract

A recent paper by Moore and Witten explained that Ramond-Ramond fields in Type II superstring theory have a global meaning in K-theory. In this note we amplify and generalize some points raised in that paper. In particular, we express the coupling of the Ramond-Ramond fields to D-branes in a K-theoretic framework and show that the anomaly in this coupling exactly cancels the anomaly from the fermions on the brane, both in Type IIA and Type IIB.

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D. S. Freed, M. J. Hopkins. 2000-06-14. On Ramond-Ramond fields and K-theory. https://doi.org/10.1088/1126-6708%2F2000%2F05%2F044

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