Abstract
Non-topological solitons (Q-balls) are discussed in some stringy settings. Our main result is that the dielectric D-brane system of Myers admits non-abelian Q-ball solutions on their world-volume, in which N Dp-branes relax to the standard dielectric form outside the Q-ball, but assume a more diffuse configuration at its centre. We also consider how Q-balls behave in the bulk of extra-dimensional theories, or on wrapped branes. We demonstrate that they carry Kaluza-Klein charge and possess a corresponding Kaluza-Klein tower of states just as normal particles, and we discuss surface energy effects by finding exact Q-ball solutions in models with a specific logarithmic potential.
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ArXiv ePrint: 1507.04557
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Abel, S., Kehagias, A. Q-branes. J. High Energ. Phys. 2015, 96 (2015). https://doi.org/10.1007/JHEP11(2015)096
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DOI: https://doi.org/10.1007/JHEP11(2015)096