KEK素粒子原子核研究所・理論セミナー(大河内 豊 准教授)

カテゴリ理論セミナー
開始2020/06/09 (火) 11:00
終了2020/06/09 (火) 12:00
会場Online (Zoom)
講演タイトルCatalytic Creation of Baby Bubble Universe with Small Positive Cosmological Constant
講演者大河内 豊 准教授( 九州大学 )
言語英語/English
連絡先yuhma-AT-post.kek.jp
ウェブサイト
食堂・売店利用予定なし/0

概要

In this talk, I will discuss the decay of metastable de Sitter vacua catalyzed by a black hole and a cloud of strings and apply the method to the creation of the four dimensional bubble universe in the five dimensional AdS spacetime. We study the bounce action for the creation and find that the bubble with very small cosmological constant is favored by the catalysis by assuming appropriate mass scales of the black hole and the cloud of strings to reproduce the present energy densities of matter and radiation in the bubble universe.

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