37 citations · 96 across the 6 of their papers we have counts for
6 papers
Two-loop corrections to partition function of Pohlmeyer-reduced theory for AdS_5 x S^5 superstring
Y. Iwashita, R. Roiban, A. A. Tseytlin
Pohlmeyer reduction of AdS_5 x S^5 superstring leads to a set of equations of motion following from an action containing a bosonic Sp(2,2) x Sp(4)/[SU(2)]^4 gauged WZW term, an int…
One-loop corrections to AdS_5 x S^5 superstring partition function via Pohlmeyer reduction
Yukinori Iwashita
We discuss semiclassical expansions around a class of classical string configurations lying in AdS_3 x S^1 using the Pohlmeyer-reduced from of the AdS_5 x S^5 superstring theory. T…
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…
Gravity is controlled by cosmological constant
Yukinori Iwashita, Tetsuya Shiromizu, Keitaro Takahashi +1
We discuss a Randall-Sundrum-type two D-braneworld model in which D-branes possess different values of the tensions from those of the charges, and derive an effective gravitational…