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Article overview
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Ward Identities for Affine-Virasoro Correlators | | M.B. Halpern
; N.A. Obers
; | | Date: |
22 Jul 1992 | | Journal: | Int. J. Mod. Phys. A9 (1994) 265-312 | | Subject: | hep-th | | Abstract: | Generalizing the Knizhnik-Zamolodchikov equations, we derive a hierarchy of non-linear Ward identities for affine-Virasoro correlators. The hierarchy follows from null states of the Knizhnik-Zamolodchikov type and the assumption of factorization, whose consistency we verify at an abstract level. Solution of the equations requires concrete factorization ansätze, which may vary over affine-Virasoro space. As a first example, we solve the non-linear equations for the coset constructions, using a matrix factorization. The resulting coset correlators satisfy first-order linear partial differential equations whose solutions are the coset blocks defined by Douglas. | | Source: | arXiv, hep-th/9207071 | | Services: | Forum | Review | PDF | Favorites | |
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