| 日時: |
2009-01-13 11:00 - 12:00 |
| 場所: |
研究本館2階220室 |
| 会議名: |
Large Primordial Non-Gaussianity from early Universe |
| 連絡先: |
石橋明浩 |
| 講演者: |
水野俊太郎氏 (RESCEU U. Tokyo) |
| アブストラクト: |
The temperature fluctuations of the cosmic microwave background is thought to include various information on the early Universe. Among them, non-Gaussianity of the primordial fluctuations are interesting since it will provide powerful ways to constrain early Universe models. For example, the detection of large non-Gaussianity would mean that the simplest models of inflation are rejected. In this seminar, I will consider Ekpyrotic scenario and DBI inflation models as concrete examples which produce large primordial non-Gaussianities and proposed based on string/M theory. I will will explain how large non-Gaussianity is obtained in these models and summarize the present status on these models. |
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