Universal Hypermultiplet Metrics

  title={Universal Hypermultiplet Metrics},
  author={Sergei Ketov},
Some instanton corrections to the universal hypermultiplet moduli space metric of the type-IIA string theory compactified on a Calabi-Yau threefold arise due to multiple wrapping of BPS membranes and fivebranes around certain cycles of Calabi-Yau. The classical universal hypermultipet metric is locally equivalent to the Bergmann metric of the symmetric quaternionic space SU(2, 1)/U(2), whereas its generic quaternionic deformations are governed by the integrable SU(∞) Toda equation. We calculate… CONTINUE READING


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