Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2004-08-02
Phys.Lett. B610 (2005) 129-140
Physics
High Energy Physics
High Energy Physics - Theory
LaTeX, 18 pages, no figures
Scientific paper
10.1016/j.physletb.2005.01.082
We extend our formulation of the covariant quantum superstring as a WZNW model with N=2 superconformal symmetry to N=4. The two anticommuting BRST charges in the N=4 multiplet of charges are the usual BRST charge Q_S and a charge Q_V proposed by Dijkgraaf, Verlinde and Verlinde for topological models. Using our recent work on "gauging cosets", we then construct a further charge Q_C which anticommutes with Q_S + Q_V and which is intended for the definition of the physical spectrum.
Grassi Pietro Antonio
Nieuwenhuizen Patrick van
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