135 citations · 576 across the 11 of their papers we have counts for
11 papers
The semi-classical saddles in three-dimensional gravity via holography and mini-superspace approach
Heng-Yu Chen, Yasuaki Hikida, Yusuke Taki +1
We determine the complex geometries dual to the semi-classical saddles in three-dimensional gravity with positive or negative cosmological constant. We examine the semi-classical s…
Semi-classical saddles of three-dimensional gravity via holography
Heng-Yu Chen, Yasuaki Hikida, Yusuke Taki +1
We find out the complex geometries corresponding to the semi-classical saddles of threedimensional quantum gravity by making use of the known results of dual conformal field theory…
SVD Entanglement Entropy
Arthur J. Parzygnat, Tadashi Takayanagi, Yusuke Taki +1
In this paper, we introduce a new quantity called SVD entanglement entropy. This is a generalization of entanglement entropy in that it depends on two different states, as in pre-…
Complex saddles of Chern-Simons gravity and dS/CFT correspondence
Heng-Yu Chen, Yasuaki Hikida, Yusuke Taki +1
We examine the black hole solutions of dS gravity by applying the explicit dS/CFT correspondence. The gravity theory is described by Chern-Simons theory with complex ga…
Timelike entanglement entropy
Kazuki Doi, Jonathan Harper, Ali Mollabashi +2
We define a new complex-valued measure of information called the timelike entanglement entropy (EE) which in the boundary theory can be viewed as a Wick rotation that changes a spa…
Complex saddles of three-dimensional de Sitter gravity via holography
Heng-Yu Chen, Yasuaki Hikida, Yusuke Taki +1
We determine complex saddles of three-dimensional gravity with a positive cosmological constant by applying the recently proposed holography. It is sometimes useful to consider a c…
Pseudo Entropy in dS/CFT and Time-like Entanglement Entropy
Kazuki Doi, Jonathan Harper, Ali Mollabashi +2
We study holographic entanglement entropy in dS/CFT and introduce time-like entanglement entropy in CFTs. Both of them take complex values in general and are related with each othe…
CFT duals of three-dimensional de Sitter gravity
Yasuaki Hikida, Tatsuma Nishioka, Tadashi Takayanagi +1
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 WZW model in the criti…
Holography in de Sitter Space via Chern-Simons Gauge Theory
Yasuaki Hikida, Tatsuma Nishioka, Tadashi Takayanagi +1
In this paper we propose a holographic duality for classical gravity on a three-dimensional de Sitter space. We first show that a pair of SU Chern-Simons gauge theories reprod…
Topological pseudo entropy
Tatsuma Nishioka, Tadashi Takayanagi, Yusuke Taki
We introduce a pseudo entropy extension of topological entanglement entropy called topological pseudo entropy. Various examples of the topological pseudo entropies are examined in…
Holographic Pseudo Entropy
Yoshifumi Nakata, Tadashi Takayanagi, Yusuke Taki +2
We introduce a quantity, called pseudo entropy, as a generalization of entanglement entropy via post-selection. In the AdS/CFT correspondence, this quantity is dual to areas of min…