• Corpus ID: 239009879

Instanton Solutions in Open Superstring Field Theory

  title={Instanton Solutions in Open Superstring Field Theory},
  author={Nathan Berkovits and Vilson Fabricio Juliatto and Ulisses M. Portugal},
Open superstring field theory admits a “hybrid” formulation where N = 1 D = 4 supersymmetry is manifest for Calabi-Yau compactifications to four dimensions. Using this formulation, the half-BPS instanton solution of four-dimensional super-YangMills can be easily generalized to the full open superstring field theory. In this paper, we compute the first stringy correction to the super-Yang-Mills instanton solution which involves turning on certain fields at the first massive level. 


Super-Poincaré invariant superstring field theory
Universality of the tachyon potential
Using string field theory, we argue that the tachyon potential on a D-brane in bosonic string theory in arbitrary background has a universal form, independent of the boundary conformal field theory
Tachyon potentials, star products and universality
We develop an efficient recursive method to evaluate the tachyon potential using the relevant universal subalgebra of the open string star algebra. This method, using off-shell versions of Virasoro
Computation of the quantum effects due to a four-dimensional pseudoparticle
A detailed quantitative calculation is carried out of the tunneling process described by the Belavin-PolyakovSchwarz-Tyupkin field configuration. A certain chiral symmetry is violated as a
First massive state of the superstring in superspace
Zwiebach, Tachyon potentials, star products and universality, JHEP
  • 2001