Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2000-05-10
Adv.Theor.Math.Phys.6:1031-1134,2003
Physics
High Energy Physics
High Energy Physics - Theory
95pp., harvmac b-mode, v2 minor corrections, v3 fixed eq. 8.40
Scientific paper
The partition function of Ramond-Ramond p-form fields in Type IIA supergravity on a ten-manifold X contains subtle phase factors that are associated with T-duality, self-duality, and the relation of the RR fields to K-theory. The analogous partition function of M-theory on X x S1 contains subtle phases that are similarly associated with E8 gauge theory. We analyze the detailed phase factors on the two sides and show that they agree, thereby testing M-theory/Type IIA duality as well as the K-theory formalism in an interesting way. We also show that certain D-brane states wrapped on nontrivial homology cycles are actually unstable, that (-1)^{F_L} symmetry in Type IIA superstring theory depends in general on a cancellation between a fermion anomaly and an anomaly of RR fields, and that Type IIA superstring theory with no wrapped branes is well-defined only on a spacetime with W_7=0.
Diaconescu Duiliu-Emanuel
Moore Gregory
Witten Edward
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