Classical behaviour of Q-balls in the Wick-Cutkosky model

In this paper, we continue discussing Q-balls in the Wick--Cutkosky model. Despite Q-balls in this model are composed of two scalar fields, they turn out to be very useful and illustrative for examining various important properties of Q-balls. In particular, in the present paper we study in detail (...

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Bibliographic Details
Published in:arXiv.org 2019-02
Main Authors: Panin, A G, Smolyakov, M N
Format: Article
Language:English
Subjects:
Mathematical models
Stability analysis
Online Access:Get full text
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Summary:In this paper, we continue discussing Q-balls in the Wick--Cutkosky model. Despite Q-balls in this model are composed of two scalar fields, they turn out to be very useful and illustrative for examining various important properties of Q-balls. In particular, in the present paper we study in detail (analytically and numerically) the problem of classical stability of Q-balls, including the nonlinear evolution of classically unstable Q-balls, as well as the behaviour of Q-balls in external fields in the non-relativistic limit.
ISSN:2331-8422
DOI:10.48550/arxiv.1810.03558