3 papers
hep-th2025
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…
hep-th2025
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…
hep-th2025
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…