The closed string tadpole in open string field theory
High Energy Physics - Theory
2009-12-04 v1
Abstract
We compute a class of gauge invariant observables for marginal solutions and the tachyon vacuum. In each case we find that the observables are related in a simple way to the closed-string tadpole on a disk with appropriate boundary conditions. We give a sketch of an argument that this result should hold in general using the BRST invariance of the closed string two-point function. Finally, we discuss the analogous set of invariants in the Berkovits superstring field theory.
Cite
@article{arxiv.0804.1131,
title = {The closed string tadpole in open string field theory},
author = {Ian Ellwood},
journal= {arXiv preprint arXiv:0804.1131},
year = {2009}
}
Comments
32 pages, 9 figures