English

On Finite-Size D-Branes in Superstring Theory

High Energy Physics - Theory 2019-11-26 v3

Abstract

We test exact marginality of the deformation describing the blow-up of a zero-size D(-1) brane bound to a background of D3-branes by analyzing the equations of motion of superstring field theory to third order in the size. In the process we review the derivation of the instanton profile from string theory, extending it to include α\alpha'- corrections.

Keywords

Cite

@article{arxiv.1902.10955,
  title  = {On Finite-Size D-Branes in Superstring Theory},
  author = {Luca Mattiello and Ivo Sachs},
  journal= {arXiv preprint arXiv:1902.10955},
  year   = {2019}
}

Comments

35 pages, 2 figures; revised sections 6 and 7

R2 v1 2026-06-23T07:53:55.400Z