61 citations · 113 across the 8 of their papers we have counts for
8 papers
Boundary flow and geometric realization in holographic -deformed BCFT
Feiyu Deng
We study the deformation of boundary conformal field theories (BCFTs) from an intrinsic field-theoretic perspective. Formulating the deformation as a modification of the…
Causality Criteria for Island Models
Feiyu Deng
Island models offer a compelling resolution of the black hole information paradox, but they also raise persistent questions about causal consistency in effective descriptions. In p…
An Interpretation for the Equivalence of Two Holographic Computations of the Butterfly Velocity with the Canonical Formalism of Gravity
Feiyu Deng, Xiao-Shuai Wang, Jie-qiang Wu
In this paper, we revisit the equivalence of two holographic computations of the butterfly velocity: the computation with the shock wave solution and the computation with the entan…
Holographic boundary conformal field theory with deformation
Zhi Wang, Feiyu Deng
We propose a holographic dual of boundary conformal field theory (BCFT) with deformation, i.e. of BCFT. Our holographic proposal distinguishes two types of $T\b…
End of the World Brane meets
Feiyu Deng, Zhi Wang, Yang Zhou
End of the world branes in AdS have been recently used to study problems deeply connected to quantum gravity, such as black hole evaporation and holographic cosmology. With non-cri…
JT Gravity from Partial Reduction and Defect Extremal Surface
Feiyu Deng, Yu-Sen An, Yang Zhou
We propose the three-dimensional bulk dual for Jackiw-Teitelboim gravity coupled with CFT bath based on partial reduction. The bulk dual is classical AdS gravity with a defect…
Page Curve from Defect Extremal Surface and Island in Higher Dimensions
Jinwei Chu, Feiyu Deng, Yang Zhou
Defect extremal surface is defined by minimizing the Ryu-Takayanagi surface corrected by the defect theory, which is useful when the RT surface crosses or terminates on the defect.…
Defect extremal surface as the holographic counterpart of Island formula
Feiyu Deng, Jinwei Chu, Yang Zhou
We propose defect extremal surface as the holographic counterpart of boundary quantum extremal surface. The defect extremal surface is defined by minimizing the Ryu-Takayanagi surf…