Supersymmetric three cycles and supersymmetry breaking
Aug, 19999 pages
Published in:
- Phys.Rev.D 61 (2000) 026001
e-Print:
- hep-th/9908135 [hep-th]
Report number:
- SLAC-REPRINT-1999-077,
- SU-ITP-99-41
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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.- supersymmetry: symmetry breaking
- string model
- soliton: BPS
- compactification: Calabi-Yau
- membrane model: D-brane
- membrane model: p-brane
- p-brane: 6
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