3 papers
hep-th2005
Exploring Vacuum Manifold of Open String Field Theory
Y. Igarashi, K. Itoh, F. Katsumata +2
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 presente…
hep-th2005
Classical Solutions and Order of Zeros in Open String Field Theory
Y. Igarashi, K. Itoh, F. Katsumata +2
Earlier an analytic approach is proposed for classical solutions describing tachyon vacuum in open string field theory. Based on the approach, we construct a certain class of class…
hep-th2004
Marginal Deformations and Closed String Couplings in Open String Field Theory
F. Katsumata, T. Takahashi, S. Zeze
We investigate analytic classical solutions in open string field theory which are constructed in terms of marginal operators. In the classical background, we evaluate a coupling be…