Free oscillations of scalar fields with a Higgs potential are investigated in cosmological models based on scalar fields, both in the case of isolated classical and phantom fields and in the case of an asymmetric scalar doublet. On the basis of numerical modeling, we have found dependences of the period of free oscillations with zero effective energy on the parameters of the field model and have also constructed energy spectra of the zero oscillations. These spectra display a thermal character, which allows us to interpret them as mass spectra of scalar bosons.

中文翻译：

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宇宙学模型中零有效能量和欧几里德循环的标量场自由振荡的物理特性

在基于标量场的宇宙学模型中研究了具有希格斯势的标量场的自由振荡，无论是在孤立的经典场和幻影场的情况下，还是在不对称标量双峰的情况下。在数值模拟的基础上，我们发现了有效能量为零的自由振荡周期对场模型参数的依赖性，并构建了零振荡的能谱。这些光谱显示出热特性，这使我们能够将它们解释为标量玻色子的质谱。