Compactifications of Ftheory on CalabiYau threefolds (II)
Abstract
We continue our study of compactifications of Ftheory on CalabiYau threefolds. We gain more insight into Ftheory duals of heterotic strings and provide a recipe for building Ftheory duals for arbitrary heterotic compactifications on elliptically fibered manifolds. As a byproduct we find that string/string duality in six dimensions gets mapped to fiber/base exchange in Ftheory. We also construct a number of new N = 1, d = 6 examples of Ftheory vacua and study transitions among them. We find that some of these transition points correspond upon further compactification to 4 dimensions to transitions through analogues of ArgyresDouglas points of N = 2 moduli. A key idea in these transitions is the notion of classifying (0,4) fivebranes of heterotic strings.
 Publication:

Nuclear Physics B
 Pub Date:
 February 1996
 DOI:
 10.1016/05503213(96)003690
 arXiv:
 arXiv:hepth/9603161
 Bibcode:
 1996NuPhB.476..437M
 Keywords:

 High Energy Physics  Theory
 EPrint:
 latex with epsf, 33 pages + 4 figures. Minor corrections