S-duality and topological strings

Nikita Nekrasov, Hirosi Ooguri, Cumrun Vafa

Research output: Contribution to journalArticlepeer-review

47 Citations (Scopus)


In this paper we show how S-duality of type-IIB superstrings leads to an S-duality relating A- and B-model topological strings on the same Calabi-Yau as had been conjectured recently: D-instantons of the B-model correspond to A-model perturbative amplitudes and D-instantons of the A-model capture perturbative B-model amplitudes. Moreover this confirms the existence of new branes in the two models. As an application we explain the recent results concerning A-model topological strings on Calabi-Yau and its equivalence to the statistical mechanical model of melting crystal.

Original languageEnglish
Pages (from-to)161-171
Number of pages11
JournalJournal of High Energy Physics
Issue number10
Publication statusPublished - 1 Oct 2004
Externally publishedYes


  • D-branes
  • Topological Strings


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