Ramond sector characters and N = 2 Landau-Ginzburg models

P. Di Francesco, S. Yankielowicz

Research output: Contribution to journalArticlepeer-review


We give a direct proof of the new "product" expression for the Ramond sector characters of N = 2 minimal models recently suggested by Witten. Our construction allows us to generalize these expression to the D and E series of N = 2 minimal models, as well as to other N = 2 Kazama-Suzuki coset models such as SU(N)×SO(2(N-1))/SU(N-1)×U(1). We verify that these expressions indeed coincide with the corresponding Landau-Ginzburg "elliptic genus", a certain topologically invariant twisted path integral with the effective Landau-Ginzburg action, which we obtain by using Witten's method. We indicate how our approach may be used to construct (or rule out) possible Landau-Ginzburg potentials for describing other N = 2 superconformal theories.

Original languageEnglish (US)
Pages (from-to)186-210
Number of pages25
JournalNuclear Physics, Section B
Issue number1
StatePublished - Nov 22 1993
Externally publishedYes

ASJC Scopus subject areas

  • Nuclear and High Energy Physics


Dive into the research topics of 'Ramond sector characters and N = 2 Landau-Ginzburg models'. Together they form a unique fingerprint.

Cite this