37 citations · 71 across the 2 of their papers we have counts for
3 papers
Pohlmeyer-reduced form of string theory in AdS_5 x S^5: semiclassical expansion
B. Hoare, Y. Iwashita, A. A. Tseytlin
We consider the Pohlmeyer-reduced formulation of the AdS_5 x S^5 superstring. It is constructed by introducing new variables which are algebraically related to supercoset current c…
Holographic entanglement entropy of de Sitter braneworld
Yukinori Iwashita, Tsutomu Kobayashi, Tetsuya Shiromizu +1
We study the holographic representation of the entanglement entropy, recently proposed by Ryu and Takayanagi, in a braneworld context. The holographic entanglement entropy of a de…
Gravitational collapse disturbs the dS/CFT correspondence?
Yukinori Iwashita, Hirotaka Yoshino, Tetsuya Shiromizu
We study the gravitational collapse in five-dimensional de Sitter (dS) spacetime and discuss the existence of the conformal boundaries at future timelike infinity from the perspect…