Problem with classical stability of U(1) gauged Q-balls
Abstract
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 in models with different scalar field potentials, explicitly demonstrating that, in general, the regions of stability of U(1) gauged Q-balls are not defined in the same way as in the case of ordinary Q-balls. Consequently, the classical stability criterion for ordinary Q-balls cannot be applied to U(1) gauged Q-balls in the general case.
Keywords
Cite
@article{arxiv.1612.00737,
title = {Problem with classical stability of U(1) gauged Q-balls},
author = {A. G. Panin and M. N. Smolyakov},
journal= {arXiv preprint arXiv:1612.00737},
year = {2017}
}
Comments
29 pages, 7 figures, LaTeX. v3: title changed, typos corrected, minor changes in the text