Tachyon Condensation and the Emergence of Fermionic Strings from the Bosonic String
arXiv:hep-th/0102132
Abstract
The results conjectured here are based on tachyon condensation in compactified bosonic strings. They can in fact be proven from compactification alone, but this step was not treated consistently here. The proof is given in a new version of the paper: hep-th/0106235