By exploiting recent arguments about stable nonsupersymmetric D-brane states, we argue that D-brane charge takes values in the K-theory of spacetime, as has been suspected before. In the process, we gain a new understanding of some novel objects proposed recently - such as the Type I zerobrane - and we describe some new objects - such as a -1-brane in Type I superstring theory.
|Original language||English (US)|
|Journal||Journal of High Energy Physics|
|State||Published - 1998|
All Science Journal Classification (ASJC) codes
- Nuclear and High Energy Physics
- String duality
- Superstring vacua