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arXiv 2210.16699gr-qchep-th
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非最小耦合标量场对一级真空相变产生的引力波的影响

The Effect of Non-minimally Coupled Scalar Field on Gravitational Waves from First-order Vacuum Phase Transitions

A. Savaş Arapoğlu, A. Emrah Yükselci

摘要:

我们研究了非最小耦合标量场存在下的一阶真空相变,首先通过定义标量场的有效势,从耦合效应对相变初始动力学的影响入手,然后进行三维数值模拟,观察引力波功率谱的任何可能的区别.虽然我们给出了一个扩展的背景下的模型的描述,在这篇特别的论文中,我们排除了比例因子的贡献,因为我们主要集中在过渡的初始阶段的非最小耦合的直接影响。即使在这种情况下,我们发现这种修改对引力波能量密度的功率谱有明显的影响。

英文摘要:

We investigate first-order vacuum phase transitions in the presence of a non-minimally coupled scalar field starting with the coupling effect on the initial dynamics of phase transitions by defining an effective potential for the scalar field and then performing three dimensional numerical simulations to observe any possible distinction in gravitational wave power spectrum. Although we give a description of the model with the expanding background, in this particular paper, we exclude the scale factor contribution since we primarily focus on the immediate impact of the non-minimal coupling at initial phases of the transition. Even in this case we found that this modification has discernible effect on the power spectrum of the gravitational wave energy density.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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