Exploring Vacuum Manifold of Open String Field Theory
arXiv:hep-th/0506083 · doi:10.1143/PTP.114.1269
Abstract
The global symmetry generated by K_n is a subgroup of the stringy gauge symmetry. We explore the part of the vacuum manifold related by this symmetry. A strong evidence is presented that the analytic classical solutions to the cubic string field theory found earlier in Refs. [5,6] are actually related by the symmetry and, therefore, all of them describe the same tachyon vacuum. Some remaining subtlety is pointed out.
28 pages; v2: errors and typos corrected