Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2002-08-26
JHEP0401:024,2004
Physics
High Energy Physics
High Energy Physics - Theory
Explanations clarified, typos corrected, references added
Scientific paper
10.1088/1126-6708/2004/01/024
We advocate a framework for constructing perturbative closed string compactifications which do not have large-radius limits. The idea is to augment the class of vacua which can be described as fibrations by enlarging the monodromy group around the singular fibers to include perturbative stringy duality symmetries. As a controlled laboratory for testing this program, we study in detail six-dimensional (1,0) supersymmetric vacua arising from two-torus fibrations over a two-dimensional base. We also construct some examples of two-torus fibrations over four-dimensional bases, and comment on the extension to other fibrations.
Hellerman Simeon
McGreevy John
Williams Brook
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