Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
1997-05-14
Nucl.Phys. B503 (1997) 533-564
Physics
High Energy Physics
High Energy Physics - Theory
35 pages, many embedded figures. Caveat added concerning result 4
Scientific paper
10.1016/S0550-3213(97)00516-6
The map between the moduli space of F-theory (or type II string) compactifications and heterotic string compactifications can be considerably simplified by using "stable degenerations". We discuss how this method applies to both the E8 x E8 and the Spin(32)/Z2 heterotic string. As a simple application of this method we derive some basic properties of the nonperturbative physics of collections of E8 or Spin(32)/Z2 point-like instantons sitting at A-D-E singularities on a K3 surface.
Aspinwall Paul S.
Morrison David R.
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