Skip to content

D-branes in type I string theory

M. Frau, L. Gallot, A. Lerda, P. Strigazzi

hep-tharXiv:hep-th/0012167

Abstract

We review the boundary state description of D-branes in type I string theory and show that the only stable non-BPS configurations are the D-particle and the D-instanton. We also compute the gauge and gravitational interactions of the non-BPS D-particles and compare them with the interactions of the dual non-BPS states of the heterotic string, finding complete agreement.

Create a lesson