Gravity waves from tachyonic preheating after hybrid inflation
Gravity waves from tachyonic preheating after hybrid inflation
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DOI：
10.1088/1475-7516/2009/03/001
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发表时间：
2008-12
影响因子：
6.4
通讯作者：
J. Dufaux;G. Felder;L. Kofman;Olga Navros
中科院分区：
文献类型：
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作者：
J. Dufaux;G. Felder;L. Kofman;Olga Navros
本文研究了混合暴胀模型中由预热产生的引力波的随机背景。我们调查不同的动力学制度的预热在这些模型中，我们计算得到的重力波谱分析估计和数值模拟。我们讨论了重力波的频率和振幅对各种势参数的依赖性。我们发现，大区域的参数空间导致重力波，可能是在即将到来的干涉实验，包括先进的LIGO观察到的，但这通常需要非常小的耦合常数。
We study the stochastic background of gravitational waves produced from preheating in hybrid inflation models. We investigate different dynamical regimes of preheating in these models and we compute the resulting gravity wave spectra using analytical estimates and numerical simulations. We discuss the dependence of the gravity wave frequencies and amplitudes on the various potential parameters. We find that large regions of the parameter space leads to gravity waves that may be observable in upcoming interferometric experiments, including Advanced LIGO, but this generally requires very small coupling constants.