Math @ Duke

Publications [#243287] of Paul S. Aspinwall
Papers Published
 Aspinwall, PS, Aspects of the hypermultiplet moduli space in string duality,
Journal of High Energy Physics, vol. 2 no. 4
(1998),
pp. XXIX26, ISSN 10298479 [hepth/9802194]
(last updated on 2018/12/12)
Abstract: A type IIA string (or Ftheory) compactified on a CalabiYau threefold is believed to be dual to a heterotic string on a K3 surface times a 2torus (or on a K3 surface). We consider how the resulting moduli space of hypermultiplets is identified between these two pictures in the case of the E8 × E8 heterotic string. As examples we discuss SU(2)bundles and G2bundles on the K3 surface and the case of pointlike instantons. We are lead to a rather beautiful identification between the integral cohomology of the CalabiYau threefold and some integral structures on the heterotic side somewhat reminiscent of mirror symmetry. We discuss the consequences for probing nonperturbative effects in the both the type IIA string and the heterotic string.


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