Conformal Invariance on Orbifolds and Excitations of Singularity
نویسنده
چکیده
We study conformal field theory on two-dimensional orbifolds and show this to be an effective way to analyze physical effects of geometric singularities with angular deficits. They are closely related to boundaries and cross caps. Representatives classes of singularities can be described exactly using generalizations of boundary states. From this we compute correlation functions and derive the spectra of excitations localized at the singularities. December 2006 ∗yinzheng at ustc point edu dot cn
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تاریخ انتشار 2007