Non periodic Ishibashi states: the su(2) and su(3) affine theories

Details Non periodic Ishibashi states: the su(2) and su(3) affine theories Non periodic Ishibashi states: the su(2) and su(3) affine theories

2002-01-24

arxiv.org/abs/hep-th/0201190v1

Nucl.Phys. B633 (2002) 345-364

Physics

High Energy Physics

High Energy Physics - Theory

19 pages, 3 figures

Scientific paper

10.1016/S0550-3213(02)00250-X

We consider the su(2) and su(3) affine theories on a cylinder, from the point of view of their discrete internal symmetries. To this end, we adapt the usual treatment of boundary conditions leading to the Cardy equation to take the symmetry group into account. In this context, the role of the Ishibashi states from all (non periodic) bulk sectors is emphasized. This formalism is then applied to the su(2) and su(3) models, for which we determine the action of the symmetry group on the boundary conditions, and we compute the twisted partition functions. Most if not all data relevant to the symmetry properties of a specific model are hidden in the graphs associated with its partition function, and their subgraphs. A synoptic table is provided that summarizes the many connections between the graphs and the symmetry data that are to be expected in general.

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