Siegel Gauge in Vacuum String Field Theory
High Energy Physics - Theory
2009-11-07 v3
Abstract
We study the star algebra of ghost sector in vacuum string field theory (VSFT). We show that the star product of two states in the Siegel gauge is BRST exact if we take the BRST charge to be the one found in hep-th/0108150, and the BRST exact states are nil factors in the star algebra. By introducing a new star product defined on the states in the Siegel gauge, the equation of motion of VSFT is characterized as the projection condition with respect to this new product. We also comment on the comma form of string vertex in the ghost sector.
Cite
@article{arxiv.hep-th/0111087,
title = {Siegel Gauge in Vacuum String Field Theory},
author = {Kazumi Okuyama},
journal= {arXiv preprint arXiv:hep-th/0111087},
year = {2009}
}
Comments
13 pages, lanlmac; v3: comment added