Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2006-10-31
Physics
High Energy Physics
High Energy Physics - Theory
91 pages, 1 figure, Prepared for the Second Modave Summer School in Mathematical Physics
Scientific paper
We review various K-theory classification conjectures in string theory. Sen conjecture based proposals classify D-brane trajectories in backgrounds with no H flux, while Freed-Witten anomaly based proposals classify conserved RR charges and magnetic RR fluxes in topologically time-independent backgrounds. In exactly solvable CFTs a classification of well-defined boundary states implies that there are branes representing every twisted K-theory class. Some of these proposals fail to respect the self-duality of the RR fields in the democratic formulation of type II supergravity and none respect S-duality in type IIB string theory. We discuss two applications. The twisted K-theory classification has led to a conjecture for the topology of the T-dual of any configuration. In the Klebanov-Strassler geometry twisted K-theory classifies universality classes of baryonic vacua.
No associations
LandOfFree
What Does(n't) K-theory Classify? does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with What Does(n't) K-theory Classify?, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and What Does(n't) K-theory Classify? will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-47329