Non-Abelian Structures in BSFT and RR couplings

摘要

In this talk we show that tachyon annihilation combined with an approximation in which string theory non-commutativity structure is captured by the algebra of differential operators on space-time gives a unified approach to non-Abelian structures on D-branes, all lowest energy excitations on D-branes and all RR couplings in type II string theory.