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Holographic Entanglement of Purification

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arxiv 1708.09393 v2 pith:L67FRW4L submitted 2017-08-30 hep-th cond-mat.str-elquant-ph

Holographic Entanglement of Purification

classification hep-th cond-mat.str-elquant-ph
keywords entanglementholographicpurificationholographyquantityargumentbipartitecalled
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We study properties of the minimal cross section of entanglement wedge which connects two disconnected subsystems in holography. In particular we focus on various inequalities which are satisfied by this quantity. They suggest that it is a holographic counterpart of the quantity called entanglement of purification, which measures a bipartite correlation in a given mixed state. We give a heuristic argument which supports this identification based on a tensor network interpretation of holography. This implies that the entanglement of purification satisfies the strong superadditivity for holographic conformal field theories.

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Cited by 10 Pith papers

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