理論セミナー

日時: 2011-12-20 16:00 - 17:00
場所: 研究本館1階会議室1
会議名: Comments on Stability for de Sitter Vacua in String Theory
連絡先: 松尾 善典, ymatsuo-AT-post.kek.jp
講演者: 住友 洋介 氏  (Hong Kong University of Science and Technology)
講演言語: 英語
URL: http://research.kek.jp/group/www-theory/schedule.html
アブストラクト: We analyze a property of mass matrix at positive extrema in type II string theory. In IIA, off-diagonal components are not suppressed, therefore tachyonic directions are likely met in the presence of many moduli. While in a IIB model, such the suppression is achieved due to a hierarchy by non-perturbative effect and an alpha' correction. Many moduli may help to realize small cosmological constant in the model.

[index]