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Local Gauge Coupling Running in Supersymmetric Gauge Theories on Orbifolds
(2007)
By extending Feynman's path integral calculus to fields which respect orbifold boundary conditions we provide a straightforward and convenient framework for loop calculations on orbifolds. We take advantage of this general ...
Towards Low Energy Physics from the Heterotic String
(2008)
We investigate orbifold compactifications of the heterotic string, addressing in detail their construction, classification and phenomenological potential. Based on the insight gained from grand unification theories, we ...