On Ramond-Ramond fields and K-theory

Details On Ramond-Ramond fields and K-theory On Ramond-Ramond fields and K-theory

2000-02-03

arxiv.org/abs/hep-th/0002027v3

JHEP 0005 (2000) 044

Physics

High Energy Physics

High Energy Physics - Theory

12 pages; final revision for publication in JHEP. References added and some minor clarifications as well

Scientific paper

10.1088/1126-6708/2000/05/044

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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