English

D-brane Solitons in Supersymmetric Sigma-Models

High Energy Physics - Theory 2016-09-06 v1

Abstract

Massive D=4 N=2 supersymmetric sigma models typically admit domain wall (Q-kink) solutions and string (Q-lump) solutions, both preserving 1/2 supersymmetry. We exhibit a new static 1/4 supersymmetric `kink-lump' solution in which a string ends on a wall, and show that it has an effective realization as a BIon of the D=4 super DBI-action. It is also shown to have a time-dependent Q-kink-lump generalization which reduces to the Q-lump in a limit corresponding to infinite BI magnetic field. All these 1/4 supersymmetric sigma-model solitons are shown to be realized in M-theory as calibrated, or `Q-calibrated', M5-branes in an M-monopole background.

Keywords

Cite

@article{arxiv.hep-th/0008221,
  title  = {D-brane Solitons in Supersymmetric Sigma-Models},
  author = {Jerome P. Gauntlett and Rubén Portugues and David Tong and Paul K. Townsend},
  journal= {arXiv preprint arXiv:hep-th/0008221},
  year   = {2016}
}

Comments

16 pages, 3 figures, Latex

R2 v1 2026-07-22T14:59:41.435Z