KEK素粒子原子核研究所・理論セミナー/成子

分類理論セミナー
開始2016/04/26(火)11:00
終了2016/04/26(火)12:00
会場研究本館1階 会議室1
講演タイトルGravitational scalar-tensor theory
講演者成子 篤氏/東京工業大学
言語英語/English
連絡先倉知 昌史/kurachi-AT-post.kek.jp
ウェブサイト
食堂・売店利用予定なし/0

概要

(ABSTRACT)

We consider a new form of theories of gravity in which the action is written in terms of the Ricci scalar and its first and second derivatives. Despite the higher derivative nature of the action, the theory is free from ghost under an appropriate choice of the functional form of the Lagrangian. This model possesses 2 + 2 physical degrees of freedom, namely 2 scalar degrees and 2 tensor degrees. We also discuss the correspondence between these theories and generalized bi-Galileon theories.

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