| Budget Amount *help |
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2015: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2014: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2013: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
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| Outline of Final Research Achievements |
We calculated the non-gaussianity in anisotropic inflation systematically. In addition to the non-gaussianity, we have also evaluated the spectral index and the tensor-scalar ratio in anisotropic inflation. Then, we compared those with Planck data. Consequently, we succeeded in putting constraints on the model parameters in anisotropic inflation.
In the previous studies in anisotropic inflation, a specific functional relation between the potential function of inflaton and the gauge kinetic function had been assumed. In order to reveal universality of the anisotropic inflation, we considered more general potential function and the gauge kinetic function. As a result, we have shown that the anisotropic inflation can generically occur for some short period during inflation or in the last stage of inflation. This clearly shows the universality of the anisotropic inflation.
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