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Title: One-dimensional soliton system of gauged kink and Q-ball
Authors: Loginov, Aleksey Yurievich
Gauzshteyn, Vyacheslav Valerjevich
Keywords: одномерные системы; солитонные структуры; калибрование
Issue Date: 2019
Publisher: Томский политехнический университет
Citation: Loginov A. Yu. One-dimensional soliton system of gauged kink and Q-ball / A. Yu. Loginov, V. V. Gauzshteyn // The European Physical Journal C. — 2019. — Vol. 79, iss. 9. — [780, 16 p.].
Abstract: In the present paper, we consider a (1+1)(1+1)-dimensional gauge model consisting of two complex scalar fields interacting with each other through an Abelian gauge field. When the model's gauge coupling constants are set to zero, the model possesses non-gauged Q-ball and kink solutions that do not interact with each other. It is shown here that for nonzero gauge coupling constants, the model has a soliton solution describing the system that consists of interacting Q-ball and kink components. These two components of the kink-Q-ball system have opposite electric charges, meaning that the total electric charge of the system vanishes. The properties of the kink-Q-ball system are studied both analytically and numerically. In particular, it was found that the system possesses a nonzero electric field and is unstable with respect to small perturbations in the fields.
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