Localized Tachyons and the g_cl conjecture
arXiv:hep-th/0204247 · doi:10.1088/1126-6708/2002/07/011
Abstract
We consider C/Z_N and C^2/Z_N orbifolds of heterotic string theories and Z_N orbifolds of AdS_3. We study theories with N=2 worldsheet superconformal invariance and construct RG flows. Following Harvey, Kutasov, Martinec and Moore, we compute g_cl 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 g_cl.
Corrections and clarifications made, 19 pages