Bound-states of D-branes in L–R asymmetric superstring vacua

We discuss bound-states of D-branes in truly L–R asymmetric and thus non-geometric Type II vacuum configurations with extended supersymmetry. We argue for their stability as a result of residual supersymmetry and coupling to R–R potentials surviving in the massless spectrum. We then identify the open string excitations of these L–R asymmetric BPS D-branes. Finally, we briefly comment on possible applications and extensions.