Abstract
We discuss some physical issues related to the K-theoretic classification of D-brane charges, putting an emphasis on the role of D-brane instantons. The relation to D-instantons provides a physical interpretation to the mathematical algorithm for computing K-theory known as the "Atiyah-Hirzebruch spectral sequence". Conjecturally, a formulation in terms of D-instantons leads to a computationally useful formulation of K-homology in general. As an application and illustration of this viewpoint we discuss some issues connected with D-brane charges associated with branes in WZW models. We discuss the case of SU(3) in detail, and comment on the general picture of branes in SU(N), based on a recent result of M. Hopkins.
| Original language | English (US) |
|---|---|
| Pages (from-to) | XLXII-41 |
| Journal | Journal of High Energy Physics |
| Volume | 5 |
| Issue number | 11 |
| DOIs | |
| State | Published - 2001 |
| Externally published | Yes |
All Science Journal Classification (ASJC) codes
- Nuclear and High Energy Physics
Keywords
- Anomalies in field and string theories
- Conformai field models in string theory
- D-branes
- Solitons monopoles and instantons