paper

Non-supersymmetric Tachyon-free Type-II and Type-I Closed Strings from RCFT

arXiv:0709.1426 · doi:10.1016/j.physletb.2007.09.009

Abstract

We consider non-supersymmetric four-dimensional closed string theories constructed out of tensor products of N=2 minimal models. Generically such theories have closed string tachyons, but these may be removed either by choosing a non-trivial partition function or a suitable Klein bottle projection. We find large numbers of examples of both types.

9 pages, 1 table

Non-supersymmetric Tachyon-free Type-II and Type-I Closed Strings from RCFT · wovepaper