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arXiv · hep-th/0508149

Gauge Unification via Stable Brane Recombination

Kang-Sin Choi·Jihn E. Kim
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Abstract

We study the transition between parallel and intersecting branes on a torus. Spontaneous symmetry breaking of nonabelian gauge symmetry is understood as brane separation, and a more general intermediate deformation is discussed. We argue that there exists supersymmetry preserving transition and we can always have parallel branes as a final state. The transition is interpreted due to dynamics of the F- and D-string junctions and their generalization to (F, D$p$) bound states. The gauge group and coupling unification is achieved, also as a result of supersymmetry. From the tadpole cancelation condition, we naturally have some class of intersecting brane models as broken phases of Type I theory with SO(32) gauge group.

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Kang-Sin Choi, Jihn E. Kim. 2005-10-19. Gauge Unification via Stable Brane Recombination. https://doi.org/10.1088/1126-6708%2F2005%2F11%2F043

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