CMB probes on the correlated axion isocurvature perturbation
CMB probes on the correlated axion isocurvature perturbation
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DOI：
10.1088/1475-7516/2015/03/026
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发表时间：
2014-11
影响因子：
6.4
通讯作者：
K. Kadota;Jinn-Ouk Gong;K. Ichiki;T. Matsubara
中科院分区：
文献类型：
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作者：
K. Kadota;Jinn-Ouk Gong;K. Ichiki;T. Matsubara
我们探讨了暴胀子和类轴子场之间引力耦合的可能宇宙学后果。鉴于即将到来的宇宙微波背景（CMB）的偏振和透镜数据，我们研究的曲率和轴子等曲率扰动之间的互相关的CMB数据的敏感性。通过一个具体的例子，说明了尺度相关功率谱对轴子参数的明显依赖性。
We explore the possible cosmological consequence of the gravitational coupling between the inflaton and axion-like fields. In view of the forthcoming cosmic microwave background (CMB) polarization and lensing data, we study the sensitivity of the CMB data on the cross-correlation between the curvature and axion isocurvature perturbations. Through a concrete example, we illustrate the explicit dependence of the scale dependent cross-correlation power spectrum on the axion parameters.