K-Theory from a physical perspective

Abstract

This is an expository paper which aims at explaining a physical point of view on the K-theoretic classification of D-branes. We combine ideas of renormalization group flows between boundary conformal field theories, together with spacetime notions such as anomaly cancellation and D-brane instanton effects. We illustrate this point of view by describing the twisted K-theory of the special unitary groups SU(N).

43 pp., harvmac b-mode. 12 figures

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Cited by in corpus (31)

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• T-duality for torus bundles via noncommutative topology
• The Search for a Holographic Dual to AdS(3)xS(3)xS(3)xS(1)
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• Twisted brane charges for non-simply connected groups
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• Topics on D-brane charges with B-fields
• K-theoretic matching of brane charges in S- and U-duality
• Supersymmetric WZW models and twisted K-theory of SO(3)
• Complex K-theory of mirror pairs
• Families of Commuting Integrals of Motion with Certain Symmetries
• Computations in higher twisted $K$-theory
• Topological Strings and $D$-Branes