论文标题
将宇宙通货膨胀连接到Litebird，CMB-S4，Euclid和SKA
Connecting Cosmic Inflation to Particle Physics with LiteBIRD, CMB-S4, EUCLID and SKA
论文作者
论文摘要
我们表明，下一代宇宙微波背景实验将能够首先测量到加拉孔耦合到其他颗粒，从而打开一个新窗口，以探测宇宙通货膨胀与粒子物理学之间的连接。这种敏感性基于宇宙通胀后的重新加热阶段对宇宙扰动的红变的影响。为了进行分析，我们介绍了一种简单的分析方法，以估计未来CMB观测值对加热温度和充气耦合的敏感性。将我们的方法应用于Litebird和CMB-S4，我们发现，在给定的通货膨胀模型中，这些任务有可能同时将上限和下限施加在充气耦合上。如果将CMB数据与光学和21cm调查结合使用，可以进一步改善。我们的结果表明，未来观察的潜力限制了微物理参数，这些参数可以提供一个重要的线索，以了解如何将给定的通货膨胀模型嵌入到更基本的自然理论中。
We show that next generation Cosmic Microwave Background experiments will be capable of the first ever measurement of the inflaton coupling to other particles, opening a new window to probe the connection between cosmic inflation and particle physics. This sensitivity is based on the impact that the reheating phase after cosmic inflation has on the redshifting of cosmic perturbations. For our analysis we introduce a simple analytic method to estimate the sensitivity of future CMB observations to the reheating temperature and the inflaton coupling. Applying our method to LiteBIRD and CMB-S4 we find that, within a given model of inflation, these missions have the potential to impose both an upper and a lower bound on the inflaton coupling. Further improvement can be achieved if CMB data is combined with optical and 21cm surveys. Our results demonstrate the potential of future observations to constrain microphysical parameters that can provide an important clue to understand how a given model of inflation may be embedded in a more fundamental theory of nature.
