37 citations · 132 across the 12 of their papers we have counts for
12 papers
Strong-to-Weak Spontaneous Symmetry Breaking from Wormholes in Holography
Taishi Kawamoto, Kenya Tasuki, Masahito Yamazaki
We study strong-to-weak spontaneous symmetry breaking (SWSSB) at finite temperature and its implications in holography. SWSSB is a novel critical phenomenon that arises only in mix…
Non-hermitian Density Matrices from Time-like Entanglement and Wormholes
Jonathan Harper, Taishi Kawamoto, Ryota Maeda +2
We extensively explore the connections between time-like entanglement and non-hermitian density matrices in quantum many-body systems. We classify setups where we encounter non-her…
Traversable AdS Wormhole via Non-local Double Trace or Janus Deformation
Taishi Kawamoto, Ryota Maeda, Nanami Nakamura +1
We study (i) Janus deformations and (ii) non-local double trace deformations of a pair of CFTs, as two different ways to construct CFT duals of traversable AdS wormholes. First, we…
A Strategy for Proving the Strong Eigenstate Thermalization Hypothesis : Chaotic Systems and Holography
Taishi Kawamoto
The strong eigenstate thermalization hypothesis (ETH) provides a sufficient condition for thermalization and equilibration. Although it is expected to be hold in a wide class of hi…
Non-extremal Island in de Sitter Gravity
Peng-Xiang Hao, Taishi Kawamoto, Shan-Ming Ruan +1
This paper investigates the challenges and resolutions in computing the entanglement entropy for the quantum field theory coupled to de Sitter (dS) gravity along a timelike boundar…
Entanglement Entropy via Double Cone Regularization
Taishi Kawamoto, Yu-ki Suzuki
This paper proposes an alternative regularization method for handling the ultraviolet behavior of entanglement entropy. Utilizing an prescription in the Euclidean double cone…
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…
A Half de Sitter Holography
Taishi Kawamoto, Shan-Ming Ruan, Yu-ki Suzuki +1
A long-standing and intriguing question is: does the holographic principle apply to cosmologies like de Sitter spacetime? In this work, we consider a half dS spacetime wherein a ti…
Gluing AdS/CFT
Taishi Kawamoto, Shan-Ming Ruan, Tadashi Takayanagi
In this paper, we investigate gluing together two Anti-de Sitter (AdS) geometries along a timelike brane, which corresponds to coupling two brane field theories (BFTs) through grav…
Zoo of holographic moving mirrors
Ibrahim Akal, Taishi Kawamoto, Shan-Ming Ruan +2
We systematically study moving mirror models in two-dimensional conformal field theory (CFT). By focusing on their late-time behavior, we separate the mirror profiles into four cla…
Holographic Local Operator Quenches in BCFTs
Taishi Kawamoto, Takato Mori, Yu-ki Suzuki +2
We present a gravity dual of local operator quench in a two-dimensional CFT with conformal boundaries. This is given by a massive excitation in a three-dimensional AdS space with t…
On the Page curve under final state projection
Ibrahim Akal, Taishi Kawamoto, Shan-Ming Ruan +2
The black hole singularity plays a crucial role in formulating Hawking's information paradox. The global spacetime analysis may be reconciled with unitarity by imposing a final sta…