Replica trick for entanglement entropy in black branes Hadyan Luthfan Prihadi and Freddy Permana Zen
Institut Teknologi bandung
Abstract
We calculate the entanglement entropy of generalized static black brane between two causally separated regions using the replica trick. We consider the Euclidean Einstein-Hilbert action to calculate the replicated partition function in the saddle point approximation. The area law of the entanglement entropy is expected from the usual black hole results. This also indicates that entanglement is still present in causally disconnected regions due to the existence of black branes.
