Symmetry breaking boundary conditions and WZW orbifolds

Details Symmetry breaking boundary conditions and WZW orbifolds Symmetry breaking boundary conditions and WZW orbifolds

1999-05-05

arxiv.org/abs/hep-th/9905038v1

Adv.Theor.Math.Phys. 3 (1999) 671-726

Physics

High Energy Physics

High Energy Physics - Theory

39 pages, LaTeX2e

Scientific paper

Symmetry breaking boundary conditions for WZW theories are discussed. We derive explicit formulae for the reflection coefficients in the presence of boundary conditions that preserve only an orbifold subalgebra with respect to an involutive automorphism of the chiral algebra. The characters and modular transformations of the corresponding orbifold theories are computed. Both inner and outer automorphisms are treated.

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