Free-Field Representation of Permutation Branes in Gepner Models

Details Free-Field Representation of Permutation Branes in Gepner Models Free-Field Representation of Permutation Branes in Gepner Models

2005-12-27

arxiv.org/abs/hep-th/0512322v1

J.Exp.Theor.Phys.102:902-919,2006

Physics

High Energy Physics

High Energy Physics - Theory

24 pages, LaTex

Scientific paper

10.1134/S1063776106060045

We consider free-field realization of Gepner models basing on free-field realization of N=2 superconformal minimal models. Using this realization we analyse A/B-type boundary conditions starting from the ansatz when left-moving and right-moving free-fields degrees of freedom are glued at the boundary by an arbitrary constant matrix. It is shown that the only boundary conditions consistent with the singular vectors structure of unitary minimal models representations are given by permutation matrices and give thereby explicit free-field construction of permutation branes of Recknagel.

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