Compact Q-balls and Q-shells in a scalar electrodynamics

Details Compact Q-balls and Q-shells in a scalar electrodynamics Compact Q-balls and Q-shells in a scalar electrodynamics

2008-12-17

arxiv.org/abs/0812.3284v1

Phys.Rev.D79:045002,2009

Physics

High Energy Physics

High Energy Physics - Theory

21 pages, 7 figures

Scientific paper

10.1103/PhysRevD.79.045002

We investigate spherically symmetric non topological solitons in electrodynamics with a scalar field self interaction U ~|\psi| taken from the complex signum-Gordon model. We find Q-balls for small absolute values of the total electric charge Q, and Q-shells when |Q| is large enough. In both cases the charge density exactly vanishes outside certain compact region in the three dimensional space. The dependence of the total energy E of small Q-balls on the total electric charge has the form E ~ |Q|^(5/6), while in the case of very large Q-shells E ~ |Q|^(7/6).

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