$Φ^{4}$振荡
$Φ^{4}$ Oscillatons
摘要：
我们数值求解了具有球对称性的Einstein-Klein-Gordon系统，对于一个具有四次自相互作用势的大质量实标量场，得到了所谓的$Φ^4$ -孤子，这是振荡孤子星的简称.我们数值分析了这种双曲子的稳定性，并研究了四次势对小而强的径向扰动下的稳定（S-双曲子）和不稳定（U-双曲子）情况下的行为的影响。
英文摘要：
We solve numerically the Einstein-Klein-Gordon system with spherical symmetry, for a massive real scalar field endowed with a quartic self-interaction potential, and obtain the so-called $Φ^4$-oscillatons which is the short name for oscillating soliton stars. We analyze numerically the stability of such oscillatons, and study the influence of the quartic potential on the behavior of both, the stable (S-oscillatons) and unstable (U-oscillatons) cases under small and strong radial perturbations.
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