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Published March 7, 2000 | public
Journal Article Open

Remarks on non-BPS D-branes


Following Sen's discovery of various stable non-BPS D-branes, K-theory has been shown to be the appropriate mathematical framework for classifying conserved D-brane charges. The classification accounts for known D-branes and predicts some new ones including a D8-brane in type I superstring theory. After briefly reviewing these developments, we discuss certain issues pertaining to the D8-brane, which is unstable.

Additional Information

Copyright © Institute of Physics and IOP Publishing Limited 2000. Received 16 September 1999; Print publication: Issue 5 (7 March 2000) I am grateful to Oren Bergman, Ashoke Sen and Edward Witten for helpful discussions and suggestions. This work was supported in part by the US Department of Energy under grant no DE-FG03-92-ER40701.


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