Prospects for direct detection of inflationary gravitational waves by next generation interferometric detectors
Prospects for direct detection of inflationary gravitational waves by next generation interferometric detectors
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DOI：
10.1103/physrevd.83.043514
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发表时间：
2010-10
影响因子：
5
通讯作者：
S. Kuroyanagi;T. Chiba;N. Sugiyama
中科院分区：
文献类型：
--
作者：
S. Kuroyanagi;T. Chiba;N. Sugiyama
我们研究了未来天基引力波探测器（例如 DECIGO 和 BBO）探测暴胀引力波背景的潜在影响。通过使用基于数值计算的引力波谱的精确预测，计算混沌/自然/混合膨胀模型的每个实验的信噪比。我们研究了每个膨胀模型对影响频谱幅度和形状的再加热温度的依赖性，并发现可以在高再加热温度的混沌/自然膨胀模型中检测到引力波。通过引力波的检测，可以获得再加热温度的下限。还讨论了粒子物理再加热温度下限的含义。
We study the potential impact of detecting the inflationary gravitational wave background by the future space-based gravitational wave detectors, such as DECIGO and BBO. The signal-to-noise ratio of each experiment is calculated for chaotic/natural/hybrid inflation models by using the precise predictions of the gravitational wave spectrum based on numerical calculations. We investigate the dependence of each inflation model on the reheating temperature which influences the amplitude and shape of the spectrum, and find that the gravitational waves could be detected for chaotic/natural inflation models with high reheating temperature. From the detection of the gravitational waves, a lower bound on the reheating temperature could be obtained. The implications of this lower bound on the reheating temperature for particle physics are also discussed.