Answer by ACuriousMind for How (if) is the gauge group for gravity...
The Yang-Mills type gauge groups of an effective theory in string theory do not arise solely from the compactification, but from "wrapping" D-branes (to which open strings can be attached) around...
View ArticleHow (if) is the gauge group for gravity incorporated in the Calabi-Yau...
The Calabi-Yau manifold is a stable complex 3D (or real 6D) manifold on the geometry of which information about strings can be stored as fibre bundles of tensors, more or less like the electromagnetic...
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