D-branes, B-fields and twisted K-theory
Abstract
In this note we propose that D-brane charges, in the presence of a topologically non-trivial B-field, are classified by the K-theory of an infinite dimensional C*-algebra. In the case of B-fields whose curvature is pure torsion our description is shown to coincide with that of Witten.
- Publication:
-
Journal of High Energy Physics
- Pub Date:
- March 2000
- DOI:
- 10.1088/1126-6708/2000/03/007
- arXiv:
- arXiv:hep-th/0002023
- Bibcode:
- 2000JHEP...03..007B
- Keywords:
-
- High Energy Physics - Theory;
- Mathematics - Differential Geometry;
- Mathematics - K-Theory and Homology
- E-Print:
- LaTeX2e, 11 pages. Some typos corrected, minor additions including one reference