A coarse simplicial quantum gravity model produces semiclassical saddles whose swap entropy rises and then falls, reproducing the Page transition at n→1+.
A 2-Replica Wormhole
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abstract
Replica geometries are not rigid when gravity is dynamical. We numerically construct $1<n\leq 2$ replica saddles in $2d$ gravity coupled to a CFT and compare the resulting Renyi entropies with the field theory result.
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Studying replica wormholes and the Page curve with simplicial quantum gravity
A coarse simplicial quantum gravity model produces semiclassical saddles whose swap entropy rises and then falls, reproducing the Page transition at n→1+.