from Part II - Applications
Published online by Cambridge University Press: 14 November 2024
We consider compactification of low-energy string theory, mostly in the supergravity regime and mostly for the heterotic case, and we discuss the conditions for obtaining N = 1 in four dimensions. We review topology issues, in particular the relation of spinors with holonomies, Kahler and Calabi–Yau manifolds, cohomology, homology, and their relation to mass spectra in four dimensions. We explain the moduli space of Calabi–Yau space, the Kahler moduli, and complex structure moduli. We then consider new features of the type IIB and heterotic E8 × E8 models.
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