48 citations · 79 across the 8 of their papers we have counts for
8 papers
Sharp Complete Modified Log-Sobolev Inequalities on Classical and Quantum Tori
Long Zhao
We prove that the heat semigroup on the circle has optimal complete modified logarithmic Sobolev constant \(1\). The proof is based on a matrix-valued Wirtinger inequality and yiel…
Tight Entropy Contraction of Generalized Quantum Depolarization
Li Gao, Long Zhao
We establish upper and lower bounds for relative entropy contraction of generalized quantum depolarizing channels and semigroups. Our bound provides tight first order asymptotic of…
Timelike Entanglement Entropy in Higher Curvature Gravity
Zi-Xuan Zhao, Long Zhao, Song He
This work investigates holographic timelike entanglement entropy in higher curvature gravity, with a particular focus on Lovelock theories and on the role of excited states. For st…
Holographic deformation of the entanglement entropy in (A)dS/CFT
Jing-Cheng Chang, Song He, Yu-Xiao Liu +1
In recent years, the holographic duality between -deformed conformal field theory (CFT) and Anti-de Sitter (AdS) spacetime with finite radial cutoff has received signific…
Detecting quantum chaos via pseudo-entropy
Song He, Pak Hang Chris Lau, Long Zhao
Quantum informatic quantities such as entanglement entropy are useful in detecting quantum phase transitions. Recently, a new entanglement measure called pseudo-entropy was propose…
Entanglement and Pseudo Entanglement Dynamics versus Fusion in CFT
Song He, Yu-Xuan Zhang, Long Zhao +1
The fusion rules and operator product expansion (OPE) serve as crucial tools in the study of operator algebras within conformal field theory (CFT). Building upon the vision of usin…
Island formula in Planck brane
Jing-Cheng Chang, Song He, Yu-Xiao Liu +1
Double holography offers a profound understanding of the island formula by describing a gravitational system on AdS coupled to a conformal field theory on ,…
Quantum chaos, scrambling and operator growth in deformed SYK models
Song He, Pak Hang Chris Lau, Zhuo-Yu Xian +1
In this work, we investigate the quantum chaos in various -deformed SYK models with finite , including the SYK, the supersymmetric SYK, and the SYK models.…