Radial excitations of Q -balls, and their D -term
Radial excitations of Q -balls, and their D -term
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Q 球的径向激励及其 D 项
DOI：
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发表时间：
2012
期刊：
影响因子：
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通讯作者：
P. Schweitzer
中科院分区：
文献类型：
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作者：
M. Mai;P. Schweitzer
研究了U(1)对称性标量场论中Q球径向激发的能量动量张量的结构。对于$1LE N LE 23$激发的数值结果使我们能够详细地研究解随N的行为模式。我们表明，尽管场和能量动量张量密度表现出显著的复杂性，但解的性质随N的变化具有很大的规律性。据我们所知，这是第一次研究激发态的D项D_1，我们证明它是负的-与文献中关于基态粒子D_1的结果一致。
We study the structure of the energy-momentum tensor of radial excitations of Q-balls in scalar field theories with U(1) symmetry. The obtained numerical results for the $1le N le 23$ excitations allow us to study in detail patterns how the solutions behave with N. We show that although the fields and energy-momentum tensor densities exhibit a remarkable degree of complexity, the properties of the solutions scale with N with great regularity. This is to best of our knowledge the first study of the D-term d1 for excited states, and we demonstrate that it is negative --- in agreement with results from literature on the d1 of ground state particles.