Problem with classical stability of U(1) gauged Q-balls

@article{Panin2017ProblemWC,
  title={Problem with classical stability of U(1) gauged Q-balls},
  author={Alexander Panin and Mikhail N. Smolyakov},
  journal={Physical Review D},
  year={2017},
  volume={95},
  pages={065006}
}
In this paper, we present a detailed study of the problem of classical stability of U(1) gauged Q-balls. In particular, we show that the standard methods that are suitable for establishing the classical stability criterion for ordinary (nongauged) one-field and two-field Q-balls are not effective in the case of U(1) gauged Q-balls, although all the technical steps of calculations can be performed in the same way as those for ordinary Q-balls. We also present the results of numerical simulations… 

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