D-brane conformal field theory
arXiv:hep-th/9801190
Abstract
We outline the structure of boundary conditions in conformal field theory. A boundary condition is specified by a consistent collection of reflection coefficients for bulk fields on the disk together with a choice of an automorphism Ïof the fusion rules that preserves conformal weights. Non-trivial automorphisms Ïcorrespond to D-brane configurations for arbitrary conformal field theories.
7 pages, LaTeX2e. Slightly extended version of a talk given by J. Fuchs at the 31st International Symposium Ahrenshoop on the Theory of Elementary Particles, Buckow, Germany, September 1997