25 citations · 65 across the 11 of their papers we have counts for
13 papers
Pseudo entropy from entanglement entropy
Abhigyan Saha, Piotr Sułkowski, Tadashi Takayanagi
Pseudo entropy extends entanglement entropy from a single quantum state to a pair of nonorthogonal states and is generally complex. Taking advantage of Cauchy-Riemann equations, Kr…
Effective Dynamics of Inflationary End-of-the-World Branes in AdS
Kosei Fujiki, Michitaka Kohara, Jason Kristiano +2
We develop an effective description of a two-dimensional cosmological end-of-the-world brane embedded in AdS, with a scalar field localized on the brane. Integrating out bulk d…
de Sitter holography from a Lorentzian torus
Kosei Fujiki, Michitaka Kohara, Javier Moreno +2
We show that the quantum entanglement between the conformal field theories (CFTs) living on the future and past boundaries in the de Sitter/conformal field theory (dS/CFT) correspo…
CFT derivation of entanglement phase transition in pseudo entropy
Hiroki Kanda, Tadashi Takayanagi, Zixia Wei
In this paper, we discuss the entanglement phase transition of pseudo entropy in CFTs. We focus on the case where the in-state and the out-state are different boundary states relat…
Entropic Interpretation of Einstein Equation in dS/CFT
Kosei Fujiki, Michitaka Kohara, Kotaro Shinmyo +2
In this paper, we demonstrate that the first law of holographic pseudo-entropy, which is a non-Hermitian generalization of entanglement entropy in a two-dimensional conformal field…
Multi-entropy and the Dihedral Measures at Quantum Critical Points
Jonathan Harper, Ali Mollabashi, Tadashi Takayanagi +1
The multi-entropy and dihedral measures are a class of tractable measures for multi-partite entanglement, which are labeled by the Rényi index (or replica number) as in the Rén…
Brane Cosmology from AdS/BCFT
Kosei Fujiki, Hiroki Kanda, Michitaka Kohara +1
In this paper, we study the time-dependent dynamics of an end-of-the-world (EOW) brane in AdS with a scalar field localized on the brane. We mainly studied several aspects of holog…
Thermal Pseudo-Entropy
Pawel Caputa, Bowen Chen, Tadashi Takayanagi +1
In this work, we develop a generalisation of the thermal entropy to complex inverse temperatures, which we call the thermal pseudo-entropy. We show that this quantity represents th…
Probing de Sitter Space Using CFT States
Kazuki Doi, Naoki Ogawa, Kotaro Shinmyo +2
In this paper we construct CFT states describing a putative holographic dual to local excitations in the three-dimensional de Sitter space (dS), called the bulk local states. We fi…
The -theorem from Strong Subadditivity
Jonathan Harper, Hiroki Kanda, Tadashi Takayanagi +1
We show that strong subadditivity provides a simple derivation of the -theorem for the boundary renormalization group flow in two-dimensional conformal field theories. We work o…
Multi-entropy at low Renyi index in 2d CFTs
Jonathan Harper, Tadashi Takayanagi, Takashi Tsuda
For a static time slice of AdS we describe a particular class of minimal surfaces which form trivalent networks of geodesics. Through geometric arguments we provide evidence th…
Entanglement Phase Transition in Holographic Pseudo Entropy
Hiroki Kanda, Taishi Kawamoto, Yu-ki Suzuki +3
In this paper, we present holographic descriptions of entanglement phase transition using AdS/BCFT. First, we analytically calculate the holographic pseudo entropy in the AdS/BCFT…
Pseudo entropy under joining local quenches
Kotaro Shinmyo, Tadashi Takayanagi, Kenya Tasuki
We compute the pseudo entropy in two-dimensional holographic and free Dirac fermion CFTs for excited states under joining local quenches. Our analysis reveals two of its characteri…