Cosmological singularities, entanglement and quantum extremal surfaces
Cosmological singularities, entanglement and quantum extremal surfaces
A bstract We study aspects of entanglement and extremal surfaces in various families of spacetimes exhibiting cosmological, Big-Crunch, singularities, in particular isotropic AdS Kasner. The classical extremal surface dips into the bulk radial and time directions. Explicitly analysing the extremization equations in the semiclassical region far from the singularity, we …