An N = 2 dual pair and a phase transition |
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Institution: | F.R. Newman Laboratory of Nuclear Studies, Cornell University, Ithaca, NY 14853, USA |
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Abstract: | We carefully analyze the N = 2 dual pair of string theories in four dimensions introduced by Ferrara, Harvey, Strominger and Vafa. The analysis shows that a second discrete degree of freedom must be switched on in addition to the known “Wilson line” to achieve a non-perturbatively consistent theory. We also identify the phase transition this model undergoes into another dual pair via a process analogous to a conifold transition. This provides the first known example of a phase transition which is understood from both the type II and the heterotic string picture. |
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