English

Wild Wall Crossing and BPS Giants

High Energy Physics - Theory 2015-06-16 v1

Abstract

We show that the BPS spectrum of pure SU(3) four-dimensional super Yang-Mills with N=2 supersymmetry exhibits a surprising phenomenon: there are regions of the Coulomb branch where the growth of the BPS degeneracies with the charge is exponential. We show this using spectral networks and independently using wall-crossing formulae and quiver methods. The computations using spectral networks provide a very nontrivial example of how these networks determine the four-dimensional BPS spectrum. We comment on some physical implications of the wild spectrum: for example, exponentially many field-theoretic BPS states with large charge are gigantic. Finally, we exhibit some surprising, thus far unexplained, regularities of the BPS spectrum.

Keywords

Cite

@article{arxiv.1305.5454,
  title  = {Wild Wall Crossing and BPS Giants},
  author = {Dmitry Galakhov and Pietro Longhi and Tom Mainiero and Gregory W. Moore and Andrew Neitzke},
  journal= {arXiv preprint arXiv:1305.5454},
  year   = {2015}
}

Comments

105 pages, 25 figures

R2 v1 2026-06-22T00:21:24.774Z