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arXiv · hep-th/9908135

Supersymmetric Three-cycles and (Super)symmetry Breaking

Shamit Kachru·John McGreevy
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Abstract

We describe physical phenomena associated with a class of transitions that occur in the study of supersymmetric three-cycles in Calabi-Yau threefolds. The transitions in question occur at real codimension one in the complex structure moduli space of the Calabi-Yau manifold. In type IIB string theory, these transitions can be used to describe the evolution of a BPS state as one moves through a locus of marginal stability: at the transition point the BPS particle becomes degenerate with a supersymmetric two particle state, and after the transition the lowest energy state carrying the same charges is a non-supersymmetric two particle state. In the IIA theory, wrapping the cycles in question with D6-branes leads to a simple realization of the Fayet model: for some values of the CY modulus gauge symmetry is spontaneously broken, while for other values supersymmetry is spontaneously broken.

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Shamit Kachru, John McGreevy. 1999-09-17. Supersymmetric Three-cycles and (Super)symmetry Breaking. https://doi.org/10.1103/physrevd.61.026001

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