Charged and Uncharged D-branes in various String Theories

Abstract

We describe how the D-brane spectra of the various ten-dimensional string theories can be related to general properties of the open-closed duality, encoded in the $S$ and $P$ matrices of the conformal field theory. We also complete the classification and the description of non-BPS branes in these string theories, elucidating their non-Abelian structures and the nature of the corresponding super-Higgs mechanisms. We find that the type 0 theories and their orientifolds have two types of uncharged branes, distinguished by their couplings to the closed string tachyon. We also find that the 0A orientifold has the unusual feature of having charged and uncharged branes with identical world-volume dimensions. We conclude with some comments on fractional branes, elucidating their role in connection with the boundary states of $D_{odd}$ SU(2) WZW models.

4 extra references and acknowledgment of previous work by Felder, Fuchs, Frohlich and Schweigert on WZW Dodd branes. Final version to appear in Nucl. Phys. B. 55 pages, LaTeX

References in corpus (4)

• Type I Strings with F- and B-Flux
• Dilaton Tadpoles, Warped Geometries and Large Extra Dimensions for Non-Supersymmetric Strings
• Anomaly Analysis of Brane-Antibrane Systems
• Stacking non-BPS D-Branes

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