D-brane chemistry

@article{Burgess2003DbraneC,
  title={D-brane chemistry},
  author={Cliff P. Burgess and Nicol{\'a}s Grandi and F. Quevedo and Ra{\'u}l Rabad{\'a}n},
  journal={Journal of High Energy Physics},
  year={2003},
  volume={2004},
  pages={067}
}
We study several different kinds of bound states built from D-branes and orientifolds. These states are to atoms what branonium — the bound state of a brane and its anti-brane — is to positronium, inasmuch as they typically involve a light brane bound to a much heavier object with conserved charges which forbid the system's decay. We find the fully relativistic motion of a probe Dp'-brane in the presence of source Dp-branes is integrable by quadratures. Keplerian conic sections are obtained for… 

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