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    TH String Theory Seminar

    Twisted open strings from closed strings: the WZW orientation orbifolds

    by Martin B. Halpern (University of Berkeley)

    → Europe/Zurich
    TH Auditorium (CERN)

    TH Auditorium

    CERN
    Description
    Including world-sheet orientation-reversing automorphisms \\hat{h}σ \\in H- in the orbifold program, we have constructed the operator algebras and twisted KZ systems of the general WZW orientation orbifold Ag (H-)/H-. We find that the orientation-orbifold sectors corresponding to each \\hat{h}σ \\in H- are twisted open WZW strings, whose properties are quite distinct from conventional openstring orientifold sectors. As simple illustrations, I will also discuss the classical (high-level) limit of our construction and free-boson examples on Abelian g.