Zobrazeno 1 - 10
of 657
pro vyhledávání: '"Kim, Keun Young"'
Autor:
Fu, Yichao, Kim, Keun-Young
We investigate holographic complexities in the context of wedge holography, focusing specifically on black string geometry in AdS$_3$. The wedge spacetime is bounded by two end-of-the-world (EOW) branes with intrinsic Dvali-Gabadadze-Porrati (DGP) gr
Externí odkaz:
http://arxiv.org/abs/2412.00852
We consider the statistics of the results of a measurement of the spreading operator in the Krylov basis generated by the Hamiltonian of a quantum system starting from a specified initial pure state. We first obtain the probability distribution of th
Externí odkaz:
http://arxiv.org/abs/2411.09390
In this study, we calculate the $m-1$ correction to the reflected entropy for two adjacent intervals on a half-infinite line within the AdS$_3$/BCFT$_2$ framework, where $m$ is a Renyi index for a canonical purification. We utilize the doubling trick
Externí odkaz:
http://arxiv.org/abs/2408.14034
We develop the pole-skipping structure in de Sitter (dS) spacetime and find that their leading frequencies satisfy the relation $\omega_{dS}=i2\pi T_{dS}(1-s)$, where $T_{dS}=1/2\pi L$ and $s$ denotes spin. In the two-dimensional dS spacetime, the po
Externí odkaz:
http://arxiv.org/abs/2408.12330
Krylov complexity has recently emerged as a new paradigm to characterize quantum chaos in many-body systems. However, which features of Krylov complexity are prerogative of quantum chaotic systems and how they relate to more standard probes, such as
Externí odkaz:
http://arxiv.org/abs/2407.17054
We investigate the bulk reconstruction of AdS black hole spacetime emergent from quantum entanglement within a machine learning framework. Utilizing neural ordinary differential equations alongside Monte-Carlo integration, we develop a method tailore
Externí odkaz:
http://arxiv.org/abs/2406.07395
Autor:
Camargo, Hugo A., Huh, Kyoung-Bum, Jahnke, Viktor, Jeong, Hyun-Sik, Kim, Keun-Young, Nishida, Mitsuhiro
Publikováno v:
J. High Energ. Phys. 2024, 241 (2024)
We explore spread and spectral complexity in quantum systems that exhibit a transition from integrability to chaos, namely the mixed-field Ising model and the next-to-nearest-neighbor deformation of the Heisenberg XXZ spin chain. We corroborate the o
Externí odkaz:
http://arxiv.org/abs/2405.11254
Autor:
Ahn, Yongjun, Jahnke, Viktor, Jeong, Hyun-Sik, Ji, Chang-Woo, Kim, Keun-Young, Nishida, Mitsuhiro
Publikováno v:
J. High Energ. Phys. 2024, 20 (2024)
We study the pole-skipping phenomenon within holographic axion theories, a common framework for studying strongly coupled systems with chemical potential ($\mu$) and momentum relaxation ($\beta$). Considering the backreaction characterized by $\mu$ a
Externí odkaz:
http://arxiv.org/abs/2402.12951
Publikováno v:
J. High Energ. Phys. 2024, 141 (2024)
We employ a deep learning method to deduce the \textit{bulk} spacetime from \textit{boundary} optical conductivity. We apply the neural ordinary differential equation technique, tailored for continuous functions such as the metric, to the typical cla
Externí odkaz:
http://arxiv.org/abs/2401.00939
Publikováno v:
Phys. Rev. B 108, 235104, Published 1 December 2023
In the last decade, motivated by the concept of Planckian relaxation and the possible existence of a quantum critical point in cuprate materials, holographic techniques have been extensively used to tackle the problem of strange metals and high-$T_c$
Externí odkaz:
http://arxiv.org/abs/2307.04433