paper

A new multi-partite entanglement measure and its holographic dual

arXiv:2206.09723 · doi:10.1103/PhysRevD.106.126001

Abstract

In this letter we define a natural generalization of the von Neumann entropy to multiple parties that is symmetric with respect to all the parties. We call this measure multi-entropy. We show that for conformal field theories with holographic duals, the multi-entropy is computed by the area of an appropriate "soap-film" anchored on the boundary. We conjecture the quantum version of this prescription that takes into account the sub-leading corrections in G_N.

7 pages, 3 figures, added comments about the junction contributions and covariant generalization, added a discussion on analytic continuation

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