Sequencing BPS spectra

@article{Gukov2015SequencingBS,
  title={Sequencing BPS spectra},
  author={Sergei Gukov and Satoshi Nawata and Ingmar Saberi and Marko Stosic and Piotr Sulkowski},
  journal={Journal of High Energy Physics},
  year={2015},
  volume={2016},
  pages={1-162}
}
A bstractThis paper provides both a detailed study of color-dependence of link homologies, as realized in physics as certain spaces of BPS states, and a broad study of the behavior of BPS states in general. We consider how the spectrum of BPS states varies as continuous parameters of a theory are perturbed. This question can be posed in a wide variety of physical contexts, and we answer it by proposing that the relationship between unperturbed and perturbed BPS spectra is described by a… 
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