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arXiv 0812.3284hep-thnlin.PS
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标量电动力学中的紧Q球和紧Q壳

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

H. Arodź, J. Lis

摘要:

研究了具有标量场自相互作用U ~+的电动力学中的球对称非拓扑孤子|ψ|从复杂的符号戈登模型。当总电荷Q的绝对值很小时,我们发现了Q球,当|Q|足够大时,我们发现了Q壳.在这两种情况下,电荷密度在三维空间中的某个紧凑区域之外完全消失。小Q球的总能量E对总电荷的依赖关系为E ~ |Q| ^(5/6),而在很大的Q壳的情况下,E ~ |Q| ^(7/6)。

英文摘要:

We investigate spherically symmetric non topological solitons in electrodynamics with a scalar field self interaction U ~|ψ| 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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