Excited Q-balls

  title={Excited Q-balls},
  author={Yahya Almumin and Julian Heeck and Arvind Rajaraman and Christopher B. Verhaaren},
  journal={The European Physical Journal C},
Complex scalars in U(1)-symmetric potentials can form stable Q-balls, non-topological solitons that correspond to spherical bound-state solutions. If the U(1) charge of the Q-ball is large enough, it can support a tower of unstable radial excitations with increasing energy. Previous analyses of these radial excitations were confined to fixed parameters, leading to excited states with different charges Q. In this work, we provide the first characterization of the radial excitations of solitons… 

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