While this isn't necessarily going to answer your request, I think it might be interesting none the less:
Phases of N=2 Theories in Two Dimensions
In a String Theory context:
The Basic Idea is to study a GLSM in 2D which exhibits the interesting property to lead to Calabi-Yau compactification in one phase and Orbifold compactification in the other.
The hope & current research is to better understand Calabi-Yau compactification by taking a look at the Orbifold phase and perhaps find a suitable way to give rise to the standard model in String Theory.
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