Shape dependence of holographic Renyi entropy in arbitrary dimensions
Aula: Aula 7 - Ore: 11.00
Via Musei 41, Brescia
Dott. Roberto Auzzi
Università Cattolica del Sacro Cuore
Dott.ssa SHIRA CHAPMAN
Perimeter Institute for Theoretical Physics, Canada
The computation of the Rényi entropies in a QFT can be performed in principle using the replica trick, which amounts to the insertion of a co-dimension two twist operator in the path-integral. In a conformal field theory in the vacuum state, the effect of small shape deformations around a spherical or flat entangling surface is encoded in a piece of CFT data associated to this defect. A method to extract this quantity holographically is described.