Virasoro Algebra and O(N) Sigma Model

Details Virasoro Algebra and O(N) Sigma Model Virasoro Algebra and O(N) Sigma Model

1997-05-15

arxiv.org/abs/hep-th/9705119v2

Int.J.Mod.Phys. A14 (1999) 25-40

Physics

High Energy Physics

High Energy Physics - Theory

13 pages, REVTEX, no figures

Scientific paper

10.1142/S0217751X99000026

Within the framework of a local expansion of the logarithm of the O(N)
sigma-model vacuum functional, valid for slowly varying fields, the modified
Virasoro algebra is studied. The operator-like central charge term is given, up
to second order, for a general functional.

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