On classification of N=2 supersymmetric theories

Nov, 1992
116 pages
Published in:
  • Commun.Math.Phys. 158 (1993) 569-644
e-Print:
Report number:
  • HUTP-92-A064,
  • SISSA-203-92-EP

Citations per year

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Abstract:
We find a relation between the spectrum of solitons of massive N=2N=2 quantum field theories in d=2d=2 and the scaling dimensions of chiral fields at the conformal point. The condition that the scaling dimensions be real imposes restrictions on the soliton numbers and leads to a classification program for symmetric N=2N=2 conformal theories and their massive deformations in terms of a suitable generalization of Dynkin diagrams (which coincides with the A--D--E Dynkin diagrams for minimal models). The Landau-Ginzburg theories are a proper subset of this classification. In the particular case of LG theories we relate the soliton numbers with intersection of vanishing cycles of the corresponding singularity; the relation between soliton numbers and the scaling dimensions in this particular case is a well known application of Picard-Lefschetz theory.
  • field equations: soliton
  • field theory: massive
  • massive: field theory
  • dimension: 2
  • field theory: conformal
  • supersymmetry
  • Landau-Ginzburg model
  • model: minimal
  • sigma model
  • charge: chiral