Mirror Symmetry via Deformation of Bundles on K3 Surfaces

Abstract

We consider F-theory compactifications on a mirror pair of elliptic Calabi-Yau threefolds. This yields two different six-dimensional theories, each of them being nonperturbatively equivalent to some compactification of heterotic strings on a K3 surface S with certain bundle data E --> S. We find evidence for a transformation of S together with the bundle that takes one heterotic model to the other.

11 pages, Plain TeX. Typos corrected, references added

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