do you believe in string theory?
do you believe that the k=theory is relevant??
Witten has argued that K-theory is relevant to string theory for classifying D-brane charges. D-brane objects in string theory carry a type of charge called Ramond-Ramond charge. Ramond-Ramond fields are differential forms, and their charges should be classifed by ordinary cohomology. But gauge fields propagate on D-branes, and gauge fields give rise to vector bundles. This suggests that D-brane charge classification requires a generalization of cohomology to vector bundles -- hence K-theory.
what do you think??
i think he's got a point
2007-04-03
08:19:11
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3 answers
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asked by
R I P
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Science & Mathematics
➔ Physics