Does connected wedge imply distillable entanglement?
Abstract
The Ryu-Takayanagi formula predicts that two boundary subsystems and can exhibit large mutual information even when they are spatially disconnected on the boundary and separated by a buffer subsystem , as long as and have connected entanglement wedge in the bulk. However, whether the reduced state contains distillable EPR pairs has remained a longstanding open problem. In this work, we resolve this problem by showing that: i) there is no LO-distillable entanglement at leading order in , suggesting the absence of bipartite entanglement in a holographic mixed state , and ii) one-shot, one-way LOCC-distillable entanglement is given at leading order by locally accessible information , which is related to the entanglement wedge cross section involving the (third) purifying system via . Namely, we demonstrate that a connected entanglement wedge does not necessarily imply nonzero distillable entanglement in one-shot, one-way LOCC. We also show that entanglement of formation is given by at leading order in holography.
Cite
@article{arxiv.2411.03426,
title = {Does connected wedge imply distillable entanglement?},
author = {Takato Mori and Beni Yoshida},
journal= {arXiv preprint arXiv:2411.03426},
year = {2026}
}
Comments
94 pages, many figures (v1); 78 pages, the organization is greatly improved, Section 6.3 is added (v2); 77 pages, published version in JHEP (v3)