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천체입자물리 및 우주론 이론 연구실에서 일본 Saga University Tomo Takahashi 교수님을 초청하여 아래와 같이 세미나를 개최합니다.

학과 구성원 여러분의 많은 참석을 부탁 드립니다.


Date/time: 2019. 09. 24(Tue.) 16:00


Place: Seminar Room #31317 (3rd floor of Basic Science Bd.)


Speaker: Prof. Tomo Takahashi (Saga University)


Title: Structure Formation with Two Periods of Inflation: Beyond plain LCDM


Abstract: We discuss structure formation in models with a spectator field

in small-field inflation which accommodate a secondary period

of inflation.  In such models, subgalactic scale primordial

fluctuations can be much suppressed in comparison to the usual

power-law LCDM model while the large scale fluctuations remain

consistent with current observations. We discuss how a secondary

inflationary epoch may give rise to observable features in the small

scale power spectrum and hence be tested by the structures in the

Local Universe.


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