Boundary conditions and bimodules

New Trends in Algebraic Quantum Field Theory (AQFT2015)
Karl-Henning Rehren on February 12, 2015
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The classification of boundary conditions in 2D conformal field theory amounts to the determination of the centre of a universal algebra that encompasses "all BC at the same time". Category theory allows to compute this centre in terms of bimodules of certain chiral Frobenius algebras.

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