On sl3 Knizhnik-Zamolodchikov equations and W3 null-vector equations

Details On sl3 Knizhnik-Zamolodchikov equations and W3 null-vector equations On sl3 Knizhnik-Zamolodchikov equations and W3 null-vector equations

2008-11-27

arxiv.org/abs/0811.4587v2

Physics

High Energy Physics

High Energy Physics - Theory

28 pages, v2: added a study of the minisuperspace limit; sections 3.3, 4.4 and 5 modified

Scientific paper

Starting from Sklyanin's separation of variables for the sl3 Yangian model, we derive the separation of variables for the quantum sl3 Gaudin model. We use the resulting new variables for rewriting the sl3 Knizhnik-Zamolodchikov equations, and comparing them with certain null-vector equations in conformal field theories with W3-algebra symmetry. The two sets of equations are remarkably similar, but become identical only in the critical level limit. This is in contrast to the sl2 Knizhnik-Zamolodchikov equations, which are known to be equivalent to Belavin-Polyakov-Zamolodchikov equations for all values of the level.

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