理論セミナー

日時: 2011-05-24 16:00 - 17:00
場所: 研究本館1階会議室1
会議名: Probing the early Universe with isocurvature fluctuations and non-Gaussianity
連絡先: 川中 宣太、norita.kawanaka-AT-kek.jp
講演者: 高橋 智 氏  (佐賀大学)
講演言語: 英語
URL: http://research.kek.jp/group/www-theory/schedule.html
アブストラクト: I discuss primordial fluctuations and its non-Gaussianity in models with isocurvature perturbations. First I describe a general formalism which can give a systematic calculation of non-linear perturbations in models with isocurvature fluctuations. Then I discuss isocurvature fluctuations and non-Gaussianity in the mixed curvaton and inflaton model where the curvaton and the inflaton are both responsible for cosmic density fluctuations. The issue of differentiating CDM and baryon isocurvature modes using 21 cm fluctuations is also briefly discussed.

[index]