Localized Tachyons and the gcl conjecture
Abstract
We consider C/ZN and C2/ZN orbifolds of heterotic string theories and ZN orbifolds of AdS3. We study theories with N=2 worldsheet superconformal invariance and construct RG flows. Following Harvey, Kutasov, Martinec and Moore, we compute gcl and show that it decreases monotonically along RG flows- as conjectured by them. For the heterotic string theories, the gauge degrees of freedom do not contribute to the computation of gcl.
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