日時 : 2022年6月13日(月) 9:00～
講演者 : 西岡 辰磨 氏（大阪大）
題目 : CFT duals of three-dimensional de Sitter gravity
場所: Zoom
概要 :
We present a class of dS/CFT correspondence between two-dimensional CFTs and three-dimensional de Sitter spaces. We argue that such a CFT includes an SU(2) WZW model in the critical level limit k → －2, which corresponds to the classical gravity limit. We can generalize this dS/CFT by considering the SU(N) WZW model in the critical level limit k →－N, dual to the higher spin gravity on a three-dimensional de Sitter space. We confirm that under this proposed duality the classical partition function in the gravity side can be reproduced from CFT calculations.