3 papers
hep-th2026
Selecting Complex Extremal Surfaces with the Kontsevich--Segal--Witten Criterion
Wu-zhong Guo
Complex extremal surfaces naturally arise in holographic observables associated with timelike subregions in AdS/CFT and with holographic observables in dS/CFT, but their integratio…
hep-th2025
Duality of Ryu-Takayanagi surfaces inside and outside the horizon
Wu-zhong Guo, Jin Xu
We study the Ryu-Takayanagi (RT) surfaces associated with timelike subregions in static spacetimes with a horizon. It is possible to find the analytical continuation of the RT surf…
hep-th2025
Entanglement measures for causally connected subregions and holography
XiangKun Gong, Wu-zhong Guo, Jin Xu
In this paper, we investigate entanglement for causally connected subregions and in quantum field theory and holography. Recent developments have established that a transit…