1211.2649 (Toru Masuda)

Comments on new multiple-brane solutions based on Hata-Kojita duality in
open string field theory    [PDF]

Toru Masuda

Recently, Hata and Kojita proposed a new energy formula for a class of solutions in Witten's open string field theory, based on a surprising symmetry of correlation functions they found. Their energy formula can be regarded as a generalization of the conventional energy formula by Murata and Schnabl. Following their proposal, we investigate a new type of double-brane solution, which is connected to our previous solution by the symmetry transformation. Using a regularization method presented in our previous paper, we show that the solution satisfies the equation of motion when contracted to the solution itself and to states in the Fock space. Remarkably, it does not need any phantom piece, which is necessary for the previous one.

View original: http://arxiv.org/abs/1211.2649