/ 97 03 02 9 v 2 1 3 Ju n 19 97 QMW - PH - 97 - 1 A Mirror Pair of Calabi - Yau Fourfolds in Type II String Theory

نویسنده

  • B. S. Acharya
چکیده

We give some simple examples of mirror Calabi-Yau fourfolds in Type II string theory. These are realised as toroidal orbifolds. Motivated by the Strominger, Yau, Zaslow argument we give explicitly the mirror transformation which maps Type IIA/IIB on such a four-fold to Type IIA/IIB on the mirror. The mirrors are related by the inclusion/exclusion of discrete torsion. Implicit in the result is a confirmation of mirror symmetry to genus g in the string path integral. Finally, by considering the relationship between M-theory and Type IIA theory, we show how in M-theory on mirror Calabi-Yau fourfolds, mirror symmetry exchanges the Coulomb branch with (one of the) Higgs branches of the theory. This result is relevant to duality in N = 2 supersymmetric gauge theories in three dimensions.

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تاریخ انتشار 1997