4,174 research outputs found
Self-Duality, Ramond-Ramond Fields, and K-Theory
Just as D-brane charge of Type IIA and Type IIB superstrings is classified,
respectively, by K^1(X) and K(X), Ramond-Ramond fields in these theories are
classified, respectively, by K(X) and K^1(X). By analyzing a recent proposal
for how to interpret quantum self-duality of RR fields, we show that the Dirac
quantization formula for the RR p-forms, when properly formulated, receives
corrections that reflect curvature, lower brane charges, and an anomaly of
D-brane world-volume fermions. The K-theory framework is important here,
because the term involving the fermion anomaly cannot be naturally expressed in
terms of cohomology and differential forms.Comment: 35 p
An Introduction To The Web-Based Formalism
This paper summarizes our rather lengthy paper, "Algebra of the Infrared:
String Field Theoretic Structures in Massive Field Theory In
Two Dimensions," and is meant to be an informal, yet detailed, introduction and
summary of that larger work.Comment: 50 pages, 40 figure
- …